Added logging to workbench plugin. Fixes #858
Added ToolItem to WidgetResolver. Fixes #856
Improved logging in Servers view. Fixes #859
Refactored DefaultTree tests. Fixes #846
Outline view waits for items (fixes #860)
Refactored editor lookup to solve #841
Adds condition for constructor to finish successfully. Fixes #862

Sets Java Required Execution Enviroment to JavaSE-1.7