The Gimp 2.4.2

- removed broken and useless HSV Graph script (bug #491311)
- update the histogram when a color correction tool is canceled (bug #493639)
- fixed a crash with certain plug-in or script descriptions (bug #492718)
- corrected a tooltip (bug #495564)
- fixed a crash when GIMP is run without any modules (bug #495863)
- fixed error handling in the TIFF plug-in
- fixed a problem with Sample points
- fixed a crash when merging layers in indexed image (bug #495990)
- update the histogram when painting (bug #494049)
- fixed another problem with merge operations on indexed images (bug #496437)
- fixed crash in TIFF plug-in when saving indexed images (bug #497103)
- changed defaults so that a system monitor profile is only used when the
user explicitly enabled this feature (bug #496890)
- fixed endless loop when running equalize on transparent areas (bug #497291)
- fixed heap corruption in GimpColorScale widget that caused a crash in the
Compose plug-in (bug #399484)
- fixed use of background color in Particle Trace script (bug #498282)
- set the image menu insensitive when there's no image opened (bug #498511)
- translation updates (ca, et, it, lt, pt, pt_BR, sr, sv)