Original commit message from CVS:
* docs/design/part-live-source.txt:
describe howto handle latency
* docs/random/ensonic/profiling.txt:
more ideas
* tools/gst-plot-timeline.py:
fix log parsing for solaris, remove unused function
Original commit message from CVS:
Added support for live sources and other elements that
cannot do preroll.
Updated design docs, added live-source design doc.
Implemented live source functionality in basesrc
Fix error condition in _bin_get_state()
Implement live source handling in -launch.
Added check for live sources.
Fixed case in GstBin where elements were changed state
multiple times.
