Adding Armenian icons for formatting buttons

This commit adds Armenian icons for Bold and Italic buttons.

Icons were created by me, according to guide at
https://usability.wikimedia.org/wiki/Text_format_icons

Links to icons used on Commons:
http://commons.wikimedia.org/wiki/File:Toolbaricon_bold_%D4%B9.png
http://commons.wikimedia.org/wiki/File:Toolbaricon_italic_%D5%87.png

Glyphs are from font based on Droid Serif,
developed by Ruben Tarumian (Hakobian) http://tarumian.am,
was released PD, for project of http://hy.am funded by OSI.

If my understanding is right those icons had to be described only
in jquery.wikiEditor.toolbar.config.js file.

Change-Id: I6afa67d4d87a359b4f596840873d8f142d85b8f9