Bugfixes in Properties
- fixed bugs in properties
- now properties can be binded to booleanProperty (used for checkboxes)
- saving of user
- loading of user
- "null" will now not be saved (so now there is no "Cant find file null"
message again - now uses ".")
- properties now even unset if you have entererd settings. Only set if
you rellay click on a setting (or with remember my decision)

Notez Mail Share
- added mail.jar to classpath
- added mail share
- added settings for mail share

Settings in GUI
- all fields now set a prompt tex (default/example value)