Make drags cancellable by pressing escape
- Sometimes doesn't work?
Rebuild
Add support for polygon sprites

Rotation, collision, and bounding box are done. Scaling needs to be done
later.
Add pong demo
Merge pull request #327 from pikalex88/318_music_blocks

Added a set volume block
issue #328, fixed save/load of local names
Merge pull request #329 from dannywils/master

Add support for polygon sprites
fix for missing sibling element
resolved merge conflict by rebuilding
fix for #352
Merge pull request #353 from waterbearlang/352_autofocus_canvas

fix for #352
fix merge conflict
Merge pull request #1 from waterbearlang/master

Update personal repo
quiet spurious missing file warnings from build script
fix pong example corrupted in earlier merge
add support for running examples
Merge pull request #354 from waterbearlang/support_running_examples

add support for running examples
Updated pong example to have matching variable names on restore
Merge pull request #355 from klindenbach/master

Updated pong example to have matching variable names on restore
Got a context menu that behaves like a menu and only appears when right-clicking a block.
- Menu items are non-functional however.