subedit v1.2.2

• srt files: Made regular expressions, for parsing srt, less strict, to accept leading and trailing whitespaces at the srt int counter and at the srt time strings, and remove them, if any.
• sub files: The line with the fps info, which should be at the beginning of the .sub file, is not ignored if there are empty lines before it.
• sub files: Lines with leading whitespaces are not ignored.