* Auto-save settings updated - now auto-save will save not only the current scene but also all levels, according to preferences option.
N.B. Note that the default value of "Automatically save non-scene files" is ON. Please make sure to disable it if you would like to automatically save the scene only.
* it works now
* Added default menu position
* Undo Fixed and Now Works with Whole Selections
* Now works with ctrl to affect all sequential cells of the same drawing
* Fixed undo
* fixed mainwindow.cpp
* Start of room choice in preferences
* Menu almost working
* Rooms Selection Working
* Removed unneeded preferences file
* Default Name for Rooms
* Rename Default room folder
* Fixed Reset to Default Rooms to reset current Roomset
* Added menu item 'Toggle Edit in Place'.
This readds the ability to edit Sub-XSheets in place. The menu item has to be
added to the menu of a room, before it can be used.
* small modification
