Added error code needed for #1498.
Merge branch 'develop' of https://github.com/Starcounter/Starcounter into NewErrorcodeForSql
Merge branch 'develop' of github.com:Starcounter/Starcounter into develop
Fixed: Socket listener (it was disabled)

Preparing to add Application cache
Made so static resources URI are registered only if port is not added.
Added Application History

Added Tool tip for some controls
Added ability to Start/Restart/Stop application
Added "Start New Application" history that remembers full application data.