Update LoginEngine.js

481: Maximize-Power Canceled.
Fix Chararacter-Delete *cancel* button
Merge pull request #7 from 2br/patch-1

Fix invalid msgstringtable index
Add PACKET_HC_CHARLIST_NOTIFY, fix signed overflow.
http://forum.robrowser.com/index.php?topic=32199.0
ItemObtain now horizontally centered at first used
Remove item description once removed from equipement window
Damage now follow entity’s movement
Invalid « miss » damage size
Improve cursor management
- Add support for option freeze/magnetism
- Privatize some public methods
- Fix cursor buggy position
- Add support for Cursor.ACTION.TARGET
Add support for skills
Missing modification from the massive clean up
Typo error following 6f55c279
Add GZIP/Deflate encryption in remote client

Will speed up files downloaded from your remote client A LOT.
Skill system is persistent
Fix firefox bug during map loading

"Too much recursion" error fixed using a setTimeout sometimes.
Fix ugly shadow on some GPU
Or is it a problem depending it the hardware accelerated html5 canvas is enable or not ?
Fix cast skill animation
Add missing animation (skill fail)
Add visual casting spell to skills
Add support for skill cast cancel