* plug-ins/gimpressionist/: placed all the orientation map-related
public functions in orientmap.h. Now we're freeing the PPM's that it
is allocating by a call to orientation_map_free_resources().
* plug-ins/gimpressionist/: fixed bug #148088: ("Gimpressioinst crashes if
given malicious presets with out of range values, in the radio buttons
group numeric values: "placetype", "orienttype", etc. ").
This was done by adding clamps to the relevant values in the preset.
Sven Neumann