Fixes#4807.
We want to differentiate between a short copyright message and a
longer one that also contains a date. The long one is only needed in
one place in a typical keyboard project. This reduces maintenance when
making keyboard updates.
Fixes#1689. Sets the default project path to
'Documents\Keyman Developer\Projects' so that
Keyman Developer files don't clutter user's
Documents folder. Can be changed in Options
dialog.
