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
Refactor and porting of service explorer code.
Addressed review comments. Actions list is now disabled while a node is being loaded. Removed some unused code.
Disabled propagation of left-clicks to a node while it is in a 'loading' state.
Marked node as loading for mobile service script nodes (table scripts, custom APIs and scheduled jobs) when they are clicked to prevent them from being invoked during subsequent clicks. Added a 'Manage subscriptions' action to root 'Azure' node.
UI changes for JdkServerPanel
Merge pull request #66 from avranju/service-explorer-refactor

Refactor and porting of service explorer code.