Added placeholders for new icons
Not depending on publishsettings file extension and some subscription import refactoring
Merge remote-tracking branch 'origin/dev' into dev
Merge pull request #65 from akrakovsky/add_placeholder_icons

Added placeholders for new icons
TFS 2937:IntelliJ- Text in server tab for xPlat not changed
Implemented VM nodes and actions.
Merge branch 'dev' into service-explorer-refactor