RTMP Input support broken in latest release

[hernanrz]

With v3.0.0 of the gem, one could do the following to get a screenshot of a RTMP stream

    ffmpeg_stream = FFMPEG::Movie.new "rtmp://piczel.tv:1935/live/1"
    ffmpeg_stream.screenshot path

But with the newer 3.0.2 version this is now broken and now we get the following error:

Errno::ENOENT: No such file or directory - the file 'rtmp://piczel.tv:1935/live/1' does not exist

This commit e9e1123 in particular seems to be source of the problem, perhaps it should be reverted? Or just add rtmp to the regexp list in there.

[cromulus]

Yup. Same. Can't stream RTSPS streams.