Update modelist.html
Update settings_menu.html

insert ext-settings_menu.js
Merge pull request #1408 from SourceR85/master

Fix errors in demo-files
fix missing var in modelist
more sites using ace
fix #1407 Emmet breaks blockindent
display emmet shortcuts in keybindings menu
allow canceling commands in multi_select mode
markClean and isClean added into UndoManager
indentation fixed
Merge pull request #1410 from Joonsoo/master

Dirty check functionality added into UndoManager
Merge pull request #1411 from ajaxorg/emmet

Emmet bugfix
jslint data export to jslint_data
jslint data moved to session onject
Can now configure theme default theme
Requiring ext/modelist