- modified the shortcut strings and the way the shortcuts were listed in the Shortcut keys list such that it will allow a future Shortcuts Manager
- updated all the language strings according to the modifications done above
- modified some strings and updated the translation strings
- in NCC Tool added a check for the validity of the used tools; its only informative
- in NCC Tool done some refactoring
- fixed the issue with factory_defaults being saved every time the app start
- fixed the preferences not being saved to a file when the Save button is pressed in Edit -> Preferences
- fixed and updated the Transform Tools in the Editors