LOW: New locale
LOW: Added missing call to close() on FileOutputStream
LOW: Dropped comment
MEDIUM: Fixed potential NPE when user does not have write access to the
parent directory of the project directory. The user also gets a
notification of the problem now.
LOW: Fixed possible NPE
VERY-IMPORTANT: Fixed a severe issue where shapes ended up being shared
by several ShapeGraphicalRepresentation.

The following scenario allows to reproduce the problem:
1) Create new palette (in VPM)
2) Drop 2 rectangles
3) Change the background color of the first one
4) Change the shape of the second one (let's say to a diamond)
5) Select the first one again and change the shape, also to a diamond
6) The 2 shapes now have the same color
7) You can change the background of the first one as much as you like,
the second one will always follow and use the same background.
Merge remote-tracking branch 'github/1.5.2' into 1.5.2