Initial version of the mailer

can send generic message using string for body, subject and recipient
[Issue #189] Added documentation to the mailer methods
[Issue #189] Added test framework
Merge branch 'master' into C4_m0hamed_C5F1_send_mail
[Issue #189] Added tests
Added Guardfile and rspec to .gitignore
Merge branch 'master' of github.com:MGhanem/smartsoft-13 into C4_m0hamed_C5F1_send_mail
[Issue #193] Removed extra lines
[issue #172][WIP] added mailer method
Merge branch 'C4_m0hamed_C5F1_send_mail' of http://github.com/MGhanem/smartsoft-13 into C4_mostafahassaan_C4S10_ListFollowedWords
[issue #177][WIP] commiting for test changes
[issue #172][WIP] commiting for checkout