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This is to be able to select the right file in all operating systems.

keyup and keypress don't care IME on or off.  so, I added handling
keydown event to check pressing enter key with IME (keycode is 229) or
without IME (keycode is 13).

For now there is a small bug that might require the refactor the current get/set types to be done in two phases. This is because the current nature of the block tree navigation and which blocks are processed first.

Cleaned up a little bit unnecessary getType block functions.

- Added warnings for setting variables to a different type than first instance
- Type finding for the get variable block
- Corrected the arduino types array
- Updated the cast block to return type as defined by cast
- Updated wording of the cast block

Initial version of static typing. Basic building blocks in place for some of the most significant blocks for this feature.
Moved the old regular expressions trick out of the arduino.js, and partially used within the math getType function.

Restored demo code to original version.

Also added detection to see if the app is run from the Ardublockly server or an online server. If only then it displays a message indicating unsupported features.

Fixed issue with calculating input focus on different input types

Updated the script start.py to launch correct webapp.
Updated gitignore to include notepad++ temp file.

This is to have the arduino material as the main arduino webapp and be able to maintain all file histories.

Material: Removed blockly scroolbar border
Classic: Fix bug where Blockly could not be dragged where the hidden modal was located.