Updated .gitignore
Added Jahia's accessibility check plugin (acheck)
Added Jahia's macros plugin (macrosdropdown)
Added CKEditor's SpellCheckAsYouType (scayt) and WebSpellChecker (wsc) plugins
Implement support for providing CKEditor FileBrowser popup window name (http://dev.ckeditor.com/ticket/7616) - solves http://jira.jahia.org/browse/QA-1989
1) Image and link dialog extensions (Browse server for files and content)

2) BACKLOG-2885 - Put the description (title) field on FCK when adding a new link on the main tab
https://jira.jahia.org/browse/BACKLOG-2885
Moved the advisory title field for a link to the first tab.
Customized CKEditor build configuration:
 - disabled forms and save plugins by default
 - enabled acheck, macrosdropdown, scayt and wsc plugins by default
 - added "jahia" to the build number to indicate that this is a custom build