Find & rename in filenames plus various tweaks & fixes

new dir tree and CodeMirror 2.3

Properties & CHMOD, API for dialogs, minor bugs & security issue fixes

Compressed CodeMirror, exclude from backup, LESS support & security i…

…mprovements

Draggable tabs

tabWidth, Zip It! and API available

server DT, last 10 files plus visual FM & tab linking

Full screen, plus some updates & minor fixes

Cross browser, sprite sheet, server info screen

Better collab editing, removed unused files, settings & default updates