R1:44e3b6883bdf

Changed MetaMta Body Parser to handle HTC mail application correctly

Summary: Added a regex to remove the text

Test Plan: Tested a few messages, from mail application them gmail, both seemed fine, will add unit tests

Reviewers: epriestley

Reviewed By: epriestley

CC: aran

Differential Revision: https://secure.phabricator.com/D2078