Text Direction Controls in The Note Editor

This patch adds RTL and LTR buttons to the note editor button set.

Dear Zotero Developers

Zotero is used all over the world today and thus it is expected that some of its users want to write notes in right-to-left languages such as Persian, Arabic, etc. Unfortunately, the ability to control text direction in the bundled TinyMCE editor within Zotero is currently missing. I've added this feature to the source and request that you include it in the main distribution. The modification is limited to a file addition (1333 bytes) and a file modification (two lines). This adds RTL and LTR buttons to the note editor button set.
Some forum discussion about this feature can be found at: http://forums.zotero.org/discussion/10879

This is a SMALL patch that would make a LARGE number of people happy with Zotero!

Thanks
Hamid Fadishei