[Pkg-kde-extras] Upload of subtitlecomposer_0.5.7-1

[Martin Steghöfer]

Dear Debian KDE Extras Maintainers,

I've been working on the package "subtitlecomposer", fixing all 8 bugs 
currently reported on the package. I've upgraded it from upstream 
version 0.5.3 to 0.5.7, which fixes 4 bugs alone, and fixed the 
remaining 4 bugs manually.

The changes are all in the git repository. It would be great, if someone 
could look into uploading it to the archives. All that's left to do is 
(1) reviewing my changes, (2) updating the changelog using "git-dch 
--auto" and (3) uploading it.

Thank you for your time!

Cheers,
Martin