Renamed the setup autostart method to enable autostart

Because I'm going to implement disabling of autostart the setup
needs to be renamed.
Added support for autostart checking and disabling autostart

These changes allow checking if autostart is enabled and allow
disabling of autostart.
Added disable autostart features to the preference screen
Merge branch 'feature/autostart' into feature/autostart-disable

Conflicts:
	desktop/src/net/mms_projects/copy_it/ui/swt/forms/PreferencesDialog.java
Merge branch 'feature/autostart' into feature/autostart-disable
Merge pull request #31 from MMS-Projects/feature/autostart-disable

Added support for disabling autostart (pull request #30)