v0.7.64 - Major bug fixes

* [0.7.62] - Bug fix: In playback mode if you added any cameras then
went back to liveview it wouldn't load the live stream.
* [0.7.63] - Bug fix / enhancement: In order to stop browser slow downs
/ hangs / crashes the range is now limited to 24 hours when using 3 or
more cameras.
* [0.7.64] - Bug fix: ajaxRequests array now checked and cleared on
$.ajaxStop() as sometimes the array would fail to be cleared by splicing
requests out of the array manually. The cromplete method is now used in
requeryTimeline() and addMonitor() to splice requests out of the array
after they finish.