Tamil - support classical orthography

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What is the expected output? What do you see instead?

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Please provide any additional information below.

Suggestion for 3.04

"The Tamil script has a classical orthography in which the vowel sign -aa 
ligates with the consonants ண NNA ன NNNA ற RRA and the vowel sign -ai 
ligates with the consonants ண NNA ன NNNA ல LA ள LLA. 

Thus ணா னா றா (also seen in the right part of ணொ னொ றொ 
ணோ னோ றோ) and ணை னை லை ளை would be presented 
differently. "

ref: https://bugzilla.redhat.com/show_bug.cgi?id=795327

Please include 'Lohit Tamil Classical' in addition to Lohit Tamil font in the 
training set.

https://fedorahosted.org/releases/l/o/lohit/lohit-tamil-classical-ttf-2.5.3.tar.
gz

https://fedorahosted.org/releases/l/o/lohit/lohit-tamil-ttf-2.5.3.tar.gz

Original issue reported on code.google.com by shreeshrii on 30 Oct 2014 at 8:16

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Also see
https://groups.google.com/forum/#!topic/mintamil/ff_DwxkAKGw
and
https://docs.google.com/viewer?a=v&pid=forums&srcid=MDQ3MTE4NTA5MTY2NjkwMTk0NTQB
MDc5MTgzMzQ2NDcxNDE4MTAyMTABVmlyMVgtTThTX1VKATAuMwEBdjI&authuser=0

about 'Training Tesseract OCR; Lohit. e-Tamil OTC and code2000 fonts issue; 
kazhagam wordlist'

Original comment by shreeshrii on 30 Oct 2014 at 8:21