[SVN] Bundle commit 500

[kumar.mcmillan at gmail.com]

Added support for $TM_MODE instead of relying on just the filename extension.  Defining a mode by filename extension still exists for compatibility and flexibility although all commands have been changed to favor handler lookup by $TM_MODE.

Changed:
U   trunk/Defaults.tmbundle/Commands/020 Function: Entity Nav.plist
U   trunk/Defaults.tmbundle/Commands/Special Items Popup.plist
U   trunk/Defaults.tmbundle/Commands/Special items max.plist
U   trunk/Defaults.tmbundle/bin/entitynav.py