Issue number 149. Changed label in sent messages form "pending" to "sms", as requested.

https://github.com/ushahidi/SMSSync/issues/149
Merge pull request #153 from 123725/develop

Changed label in sent messages form "pending" to "sms"...
151: Added 'selected' suffix
Merge remote-tracking branch 'upstream/develop' into develop
Merge pull request #154 from tstalka/develop

#151: Added 'selected' suffix
#120 - Tasks for sending sms should appear in pending tray, before going to sent tray.
Merge pull request #161 from tstalka/develop

#120 - Tasks for sending sms should appear in pending tray, before going to sent tray.
Update gradle plugin to 1.12
Upgrade to using the latest build tool
Updated contributors list.
Secret key is now properly trimmed #164.
issue-155: Removed unnecessary connection checking.
Merge pull request #168 from KamilKalfas/contributors

Updated contributors list.
Merge pull request #169 from KamilKalfas/issue-155

issue-155: Removed unnecessary connection checking.
Updated docs.
Merge pull request #167 from KamilKalfas/issue-164

Secret key is now properly trimmed #164.
Issue #101: Added time picker as a frequency setter.
Issue #163: Renamed readLogs method to readLog.
Merge pull request #172 from KamilKalfas/issue-163

Fix #163: Renamed readLogs method to readLog.
Merge pull request #171 from KamilKalfas/issue-101

Issue Fixes #101: Added time picker as a frequency setter.