Updated language deserializer generator (moved namespace to top) - thx XhmikosR :)
Merge branch 'master' of https://github.com/SubtitleEdit/subtitleedit.git
Minor namespace cleanup.
Fix test deployment.
Add a custom test script to appveyor.yml.
Various AppVeyor updates:

1. fix `CONFIGURATION` environment variable
2. set verbosity to minimal
3. enable build cache
4. enable fast_finish