* unit action: when an exclusive decision is made, deselect unit
* clicking on the unit information in the UnitTable will show that unit + minor fixes
* siege units won't show movement hints when set up, while packing up does not cost any movement points
* workers: highlight button when constructing an improvement, won't sleep then
* fixed broken saved game
* show messages if exploring is done or WorkerAutomation is done
* Revert "siege units won't show movement hints when set up, while packing up does not cost any movement points"
This reverts commit b805993a