Added Passphrase functionality to add and edit environments.
Merge branch 'master' into add_passphrase

Conflicts:
	app/src/main/java/com/pvsagar/smartlockscreen/baseclasses/Passphrase.java
updated the passphrase to database in edit and add environment
Get password for user and environment.
Added Administrator Permissions for changing password.
Added helper methods to change password.
Password now changes according to Environment! :) Changing password for an environment has some problem though, not changing. Should investigate further.
Update password working now. Changed the structure of Pin so that numbers starting with trailing 0s are stored correctly. Misc  bug fixes.
Geofence monitoring of deleted geofences are removed now. Some bugs exists in UpdateEnvironment (UI/Backend), should investigate further.
Misc bug fixes - null pointer exception in edit environment etc