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MovieCapture update.

Images now written to disk during capture.
Readability greatly improved.
Many many bugs fixed.
SBW
Update README.txt
Movie Capture update.

Heap space problems and I/O bottleneck addressed, documentation added.

SBW
Merge remote-tracking branch 'origin/master'
Non-functional time controls added.

Signed-off-by: szeren <szeren@hlidskjalf>