Bug 1029934 - User cannot input Rupee symbol

Rupee Symbol added to bn-Avro and bn-Probhat.

https://bugzilla.mozilla.org/show_bug.cgi?id=1029934

![untitled window_001](https://cloud.githubusercontent.com/assets/932949/3817819/b7a48586-1cdb-11e4-8364-590f63fcaccc.png)