Merge pull request #7 from ivandrofly/master

SeSkyDrive added & methods updated
Download url updated

I added new release which will contain only the .net 4
https://github.com/SubtitleEdit/plugins/releases
method updated
Merge branch 'master' of https://github.com/SubtitleEdit/plugins into ismael
Merge branch 'master' of https://github.com/SubtitleEdit/plugins
clean & updated