man: Change example to use randr to nudge new users towards that method
Add support for custom transition start and end elevation

Implemented through config options transition-high and transition-low (there
is no command line switch at this point). Determines at what solar elevation
Redshift will change from night to transition period to day.

Signed-off-by: Mattias Andrée <maandree@operamail.com>
Update po files from source
redshift-gtk: Notify desktop about startup completion
HACKING: Add notes on packaging, cross-compiling
Add DBus service

Add a seperate executable redshift-dbus that functions like redshift but runs
the main loop through Glib. In addition it registers a service on the session
DBus such that it can be queried and controlled.
Update RPM spec to build dbus service
redshit-dbus: Get location from Geoclue

Try to obtain location on program start and register a signal so that
the position will be updated with new information from Geoclue.
redshift-gtk: Adapt to use DBus service