Update README.rst

Removed trailing >>> in readme file
Began Converting comments, whitespacing and docstrings to conform to
PEP8 guidelines and Google's Python guidelines. 
Made some changes to white spacing to conform with PEP8 
Added PRONOUN_SUFFIX dictionary to map pronounss to their respective
suffixes. Also made some PEP8-compliant fixes to white spacing. 
PEP8 compliancy changes
PEP8 compliancy changes
Merge pull request #3 from abmohan/master

Began PEP8 compliancy changes and added functionality to TamilWord and TamilNoun