Added ability to add blank key stream.

The custom streaming services receives a blank key. It was decided to
transfer the streaming  services too empty key.
Fix bug "CR character rendered as space"

When reading the file, delete the carriage return (CR).
Merge branch 'feature' of https://github.com/Lexsus/obs-studio into feature

Conflicts:
	plugins/obs-outputs/rtmp-stream.c
	plugins/text-freetype2/text-functionality.c