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Fixed #1107

A shared backpack is enabled at SSO login time[1] by providing a
backPackId parameter in the SSO Token. Once enabled backpack contents
are not stored with the user account but instead in a specific location
defined by the backPackId. Multiple users can use the same shared
backpack at the same time. Each time the shared backpack is opened a
fresh copy is loaded from the server.

There is still a race condition if two users attempt to store blocks at
the same time. One will win and the other’s changes will not be added to
the backpack. This may be corrected or mitigated in a future release.

[1] Note: SSO Login is not currently implemented in the App Engine
version of MIT App Inventor. This commit updates the Backpack code to be
in alignment with the code we use in our Hong Kong deployment which is
not run in App Engine. We plan to implement SSO login in the App Engine
version in the near future.

Change-Id: I5957a42999ff14d7263a47993efaf8f3492c016g

Update whitelist.py so it works with the latest App Engine SDK. Also
update permissions on /remote_api to be compatible with the latest App
Engine SDK. Note: The change appears to remove the requirement for admin
rights to use the /remote_api facility. However this admin requirement
is now enforced by the Google supplied code which runs behind
/remote_api. Performing the additional check in web.xml just causes an
error about too many authentication attempts.

Also remove excess catch statement in Whitelist.java that has been
giving us compilation warnings for a very long time. Note:
Whitelist.java is no longer in use, but can be enabled via a simple edit
to OdeAuthFilter.java, so we are not removing it yet.

Change-Id: I30cbb0eba3fba3f20d8443a94dae837c827f0b20

"alignemt" => "alignment"

When importing a project that requires an upgrade involving project
settings, if any screen loaded before Screen1 would fail to
upgrade. Attempting to build a project in this state would only
generate YAIL files for the successfully loaded screens. The build
server would attempt to generate YAIL for the missing screens using
the AI1 YAIL generator, which no longer exists. The error message
doesn't give any indication that this is the problem.

This change defers loading of screens other than Screen1 until
Screen1's form is loaded. At this point the upgrade of the Form and
the project settings will have occurred, and then we can proceed to
load the additional screens.

Change-Id: Ibde055171a8939a9e9ae5ed8ea5ce3954fb5ccf1

DatePicker, TimePicker, and Notifier create dialogs that do not have
the appropriate color. This commit adds behavior to the compiler to
output styling information for dialogs so that these components
properly reflect the user's chosen AccentColor.

Change-Id: I770dcdff555b9f40a28c75e435e938e6258ab3c5

Projects using relatively sized markers are unable to load correctly
because the width/height is set before the MockMap is ready. This
change introduces a needsUpdate flag that is set when this occurs. The
size is then updated when addToMap is called once the map has been
set. This also fixes a minor bug where markers with image assets do
not end up being the correct size in the designer after toggling
visibility.

Fixes #1136 and fixes #1137

Change-Id: Ic800b19241b9bcf33cd07db17308b7c61d13b81e

Setting Theme is sufficient and an interaction with default values
breaks some upgraded apps.

Change-Id: Idf36857bcc314b7fba45d730986c5d2d6749d727

Fixes #1125

Change-Id: I6dbb8cae01fbd1cb556fe9c20f73c82fa2075051

Fixes #1121

Change-Id: I64c464a96614ee9f0d4f5b9f55ab350ddeeb12f5

Fixed #1120

Change-Id: Idd679d701cfad71580cbd841a093dd35b558fc5f

When a string such as "permission," is used with @UsesPermission, it
results in an empty string appearing in the permission list, and in
the <uses-permission> annotation in AndroidManifest.xml. Google Play
Store will reject such apps. This commit filters out empty strings
during component processing and during compilation to fix this issue.

Fixes #1108

Change-Id: Icafe2fa658f83f046dacfec98d3f0cb8f8b90755

Change-Id: If66538c363b19b001a065ebc72e73a73927da7a7

Fixes #1109

Change-Id: Ic34ac78f5fda8af8f2286d2f604f2b4d4c2e84e0

Fixes #1118

Change-Id: Ib08fb391529b26ca107b5e8f67acb329e70e958e

Many issues were reported with the theme update. This change updates
the Form version and adds a new "Classic" theme that will be default
for projects. Users can change to the new themes by using the other
theme options.

Fixes #1105, #1092, #1089, #1086, #1081

Change-Id: I9aa23a3d07d782fd61eb593e4d282a64b5941572

Change-Id: Ib0a330ed53fb3fed1f8a128908026602fc058d74

The version called wasn't introduced until 2.5, we use 2.0.1

Change-Id: I6cf1273ead751c29102f7e9bca07767c3b8241b8

1. Makes the GeoJSON asset picker show "None..." instead of "..." when
   nothing is selected
2. Makes MockFeatureCollection icon show when dragging from the palette
3. Centers the "From URL" dialog that appears when retrieving GeoJSON
   from a URL

Fixes #1074

Change-Id: Ib88eb768df5421b8be4defb472e4b516a3ca94fa

The new companion is too large to fit in the emulator's 8 MB memory
limit all at one time. This commit changes NanoHTTPD so that for PUT
operations the contents of the file being PUT are first written to a
temporary location rather than being kept fully in memory.

Fixes #1077

Change-Id: I61207c57d7d3dca8e8a2f65ba1b0afe676e6342b

A hard-coded '/' breaks builds involving Maps on Windows. This commit
switches to using File.getName() to get the name of archive before
stripping its '.aar' file extension.

Change-Id: I2b43569011975ef1d1ee33f28fbc4d1270e5f331

Resolves #1090

Fix IO not closed  properly.

Change-Id: I2ba2ca38c9cf22decc0e3cf18f96f7fd74488efb

Change-Id: I99edf1b7b150415936b159b6c365f7832d34faf8

Change-Id: I12443b52dacdb9cd71670769835898239d35158c

Change-Id: I8f2cfd0ad5d511beb1eea626538b9ed607d94696

As a part of @ColinTree commit ba120fc7, blocks copy/pasting using keyboard was removed. This commit strikes to fix issue #1068. Also, I added a few spaces for better naming...

Fixes #1068 

Add additional editorArgs parameter to DesignerProperty, and make
ChoicePropertyEditor accept editorArgs to obtain choice names.

Change-Id: I70f5421fe05f0061fe0e09a63e170ce26631caa1

Fixes #1041

Change-Id: I6a22263f218cf2e3bd78cc414957806334fef5c7

Change-Id: I904a77812093a34d2b5cabf792b157e048ab6bb0

Also fix scaling issues with ActionBar update

Fixes #1055 and #1056

Change-Id: I04099732b574bf14a329a06c0bcfc75850a4315f

This commit adds support for Maps using OpenStreetMaps and USGS tile
layers. It also adds a number of components related to Maps:

1. Marker: Custom markers to represent points on a map.
2. LineString: Line segments drawn on the map.
3. Polygon: Polygons to draw 2D areas on the map.
4. Circle: Draw a circle at a point with a given radius.
5. Rectangle: Polygons, but fixed corners/sides.
6. FeatureCollection: Collections of the above loaded
   from a GeoJSON file.

Change-Id: Ib2d7155094f2557e102de118d5c629abb9675086

CloudDB is similar to the FirebaseDB component but does not require a
proprietary back-end database. Instead the back-end is based on the open
source Redis system which is a well used and scale-able data storage
solution.

With CloudDB you can store arbitrary data, including binary image data,
based on a “tag” which is a string. The “tag” is combined with
ProjectID (which defaults to the name of the current project, but can be
changed) so that multiple projects can use the same tags without
interfering with each other.

The domain name system name of the Redis server should be configured the
“RedisServer” property. This defaults to “DEFAULT” which is a server
provided default (more on that below). The “Token” property should be
the password required for the Redis Server. An “out of the box” Redis
server does not implement SSL, so the UseSSL property should be
unchecked.

In the DEFAULT setup, the server name is set to DEFAULT, UseSSL is
checked and the Token is automatically generated when you load a
project. In the DEFAULT case, a special modified Redis server is used
which implements multi-user features which provide isolation between
different MIT App Inventor programmers. It also uses SSL to protect
on-line communications from interception.

Author: Natalie Lao <natalie@csail.mit.edu>
Author: Jeffrey I. Schiller <jis@mit.edu>
Author: Joy Mitra <joymitro1989@gmail.com>

Change-Id: Ic7d7aa0f7337a5452d9c138920813deb797fac20