TamilNoun was accidentally over-writing its base class constructor.
Added a call to base class (i.e. TamilWord's) constructor.
wrote direct_object method for TamilNoun
streamlined direct_object property
wrote test case for direct_object property's getter method
completed test cases
fixed bugs in direct_object property's getter method
fixed typos in direct object column
Merge pull request #9 from merlinexavier/master

Added direct_object property in TamilNoun and test cases