Merge pull request #248 from mercury64/plugin_version_fix

Fixed version for plugins. Will display default 0.0.0 if not set.
Merge remote-tracking branch 'origin/dev' into mptt
Fix
Merge branch 'dev' of https://github.com/butschster/kodicms into dev
Fix search indexation
Merge remote-tracking branch 'upstream/mptt' into dev
Merge remote-tracking branch 'upstream/dev' into dev