Merge pull request #32 from pradpnayak/MTE-18

Mte 18
-- worked on MTE-17, used version to check DAO class
Merge pull request #33 from pradpnayak/MTE-17

-- worked on MTE-17, used version to check DAO class
-- MTE-19, removed over-ridden file and replaced with a new table
Merge pull request #34 from pradpnayak/MTE-19

-- MTE-19, removed over-ridden file and replaced with a new table
-- MTE-20
Merge pull request #35 from pradpnayak/MTE-20

-- MTE-20
-- MTE-19 removed over-riden file
Merge pull request #36 from pradpnayak/MTE-19

-- MTE-19 removed over-riden file
-- MTE-18, fix mailer hook for civicrm 4.3