Merge pull request #176 from carlosrusso/master

German Language Pack Installer: added development_stage tag
Update IvyDD

Update IvyDD to can be uninstalled on Windows OS
 'New version of plugin metadata'
Merge pull request #177 from latinojoel/master

Update IvyDD
 'New version of plugin metadata'
 'New version of plugin metadata'
pentaho-emerald-theme: updated screenshots