Update itext_behavior.mixin.js

Removed short circuit, fix linebreak remove / reinsert problem.
InDrawingMode Mouse Events

This adds event triggers for the InDrawingMode set of mouse event handlers.

I needed to add a mousemove event handler that fired without turning off
free draw, and imagined that others could use this functionality as
well.

Event strings are formatted using the typical non-namespaced DOM format, i.e. without
colons.
Merge pull request #1835 from noslouch/drawingmode-mouseevents

InDrawingMode Mouse Events
Merge pull request #1773 from asturur/fix-itext-multilin

Fix for issue #1264 , export of removed/reinsertd newline on itext
Added Gitter badge
Merge pull request #1849 from gitter-badger/gitter-badge

Add a Gitter chat badge to README.md
Update readme
Add flattr button
Update style for hidden textbox. Fix page jump
Merge pull request #1854 from asturur/fix-text-jump

Fix text jump to top of page
Add resize filter functionality
Merge pull request #1834 from asturur/image-resize

Image resize filters
Merge pull request #3 from kangax/master

update to kangax master