Squashed 'core/' changes from 69130d8..993fcfa

993fcfa Merge tag 'v0.2.0-alpha' into develop
79f002c Merge branch 'release/0.2.0-alpha'
411895a Merge branch 'develop' of github.com:syncany/syncany into develop
5e9312a Merge tag 'v0.2.0-alpha' into develop
19a25af Merge branch 'release/0.2.0-alpha'
0a558be Add release date to changelog
808045f Merge branch 'release/0.1.12-alpha'
af59537 Merge branch 'release/0.1.11-alpha'
ed18574 Merge branch 'release/0.1.10-alpha'

git-subtree-dir: core
git-subtree-split: 993fcfa980333830943a729c106c80b0f7eb7121
Merge commit 'f7e09ea52420d6035426a634aa7cda9208a0c29f' into develop
Merge branch 'release/plugin-gui/v0.2.0-alpha'
Merge tag 'vplugin-gui/v0.2.0-alpha' into develop

Syncany GUI Plugin v0.2.0-alpha