All versions of Silent Manager white-list call

Add help screen to explain Silent Manager. version 1.7 1- Adding new screen for multi-picker contacts 2- Solving problems with hidden contacts like Facebook and contacts without phone numbers version 1.8 Add google analyitics to improve user experience Fix bugs version 1.8.1 Fix bugs Add messages to help user version 2.0 Support for contact custom ring tone. version 2.0.1 Fix bug appear on some versions version 2.1.1 Fix kitkat bug for external ring tone.