remplated xxx variable name placeholders accidentally left in place
added setThreads, added _blockSetOnInputFormat
sorted commands and bitstream filters
fixed find and replace errors
added work around with h264/libx264 codec ids
added deprecated detection to ffmpeg commands
added kill signal detection and setProcessTimelimit functionality
removed getRawBuffer in favour of a more straight forward getBuffer(true)
added deprecated command detection to ffmpeg
added setProcessTimelimit example code to README
udated flv example