refs #1655 : added - tinyMCE TTML plugin 2.0
 refs #1658 : prepare for 1.9.2 b1

  * version number tagged.
  * Documentation updated.
refs #1655 : bugfix - delete unused plugin call
 refs #1658 : modified - version number definition
  - version number definition is now compatible with 1.8 or lower.
  - TEXTCUBE_VERSION_ID is added.
refs #1658 : modified - version footer print

 - Rollback to 1.8 style.
rearrange order between css and js

`system.css` is below js files(such like `EAF4.js`, `common2.js`)
so it cause down browser redering performance.
refer
<https://developers.google.com/speed/docs/best-practices/rtt#PutStylesBeforeScripts>
add MIME type for javascript files
Merge pull request #1661 from outsideris/javascript-mime

refs #1661 : added - Javascript mime type
 - contributed by outsideris
Merge pull request #1660 from outsideris/css-ordering

refs #1660 : modified - rearrange order between css and js
 - Contributed by outsideris
 refs #1648 : bugfix - prune addition slashes
refs #1648 : bugfix - prune additional (garbage) slashes.
 - Modified version of pat-al's solution
   ( https://github.com/Needlworks/Textcube/issues/1648 )
 refs #1650 : enhancement - use numerical URL setting to decide mode
 change link

 - Imported from http://pat.im/1068
 - Creating and using mobile version of uri.permalink can be the best solution. But
 /i will be deprecated with 1.10.
refs #1655 : modified - width option / language option

 - Editor width option is now working.
 - Preparing editor language option.
 refs #1655 : modified - editor design

 - Added human-friendly margins to editor UI
Merge branch '1.9' into skin-bootstrap
refs #1654: work in progress