Use jQuery instead of $ in a few places

This avoids conflicts with other libraries that use $.
Merge pull request #140 from xforty/master

Use jQuery instead of a $ in a few places
italian translations
Merge pull request #142 from dalpo/master

Italian translations
Added nl translation
Merge pull request #148 from JelleDekker/master

Dutch translation
remove tabs from migration
README fixes for clarity
Merge pull request #150 from waynn/patch-1

README fixes for clarity
Merge pull request #149 from waynn/master

most of the migration doesn't have tabs, so removing these
Update ckeditor to 3.6.4
Add plugins attachment, embed and filebrowser
Replace tabs
Fix css files to be compiled by sass
Add jQuery.noConflict
Filebrowser path fix and update assets path
Update version
Change default uploads path
Kill window.onload event
missed two tabs