Add scripts for Bengali, Devanagari, Kannada, Malayalam, and Tamil. Also include a very minor fix for Arabic. This concludes work on: Bug: 15840116 Change-Id: Iade313fc70030a67c68d424d8cb0cac245b883d1
Bug: 10417006 Change-Id: Ieb03fe1f08c85417b5d9ad4d62c8a5bc6d0632bc