Instead of hanging forever in a _get_state() in case an error occurs when
starting up camerabin, bail out and print an error message. Also remove
unnecessary _get_state() when shutting down the pipeline.
gst-camera is a gtk-test app to play with the imagecapture and videorecording.
gst-camera-perf is a tool to run various scenarios and take time meassurements
(e.g. shot-to-shot). Also sort the output files in configure.ac a bit to be
in alphabetical order.
