v0.8.4 (20100204)

I have completely replaced the tilemapping core for something more general and versatile. The new mapping options should allow any tile-size and bitdepths 8 and over. This should make it easier to use grit for other purposes as well. NOTE: I have tested this with a number of methods, but I'm sure I missed a few things. Notably, how it will work on big-endian systems. If your tilemaps are screwed up now, this is the likely cause.
One consequence of the new mapping core is that external-tiles can now work on a meta-tile basis instead of just 8×8 tiles.
Another consequence is that you can now create custom bitformats for the map entries (-mB). This can be used to create 1bpp collision maps or use a larger range or tile-indices, for example.
Added -tw and -th options for custom tile dimensions.
Added -tc for column-major tiling.
Added -mp option, which should be useful for NDS ext-pal modes.
The -Len identifiers are now proper constants instead of #define.
The vector.insert problem on non-MSVC systems should be gone now.

v0.8.3 (20081207)

Fixed ... well let's call it a clash of arguments regarding names for shared data names if -S or -O wasn't supplied (thanks dovoto)
grit files can now be used to add more input-files (thanks dovoto)
mapsel offset -ma should work for the whole mapsel now, not just the tile-index part.

The GRF format didn't quite follow IFF standards, it should work with standard readers now.
When creating a meta-map, the meta-tiles now have the affix "MetaTiles" instead of "Map". Yes, it does mean things may break, but it simply makes more sense this way.
The C-exported arrays now have __attribute__(aligned(4)), so you don't have to worry about alignment in C anymore either.

Added -gS and -pS for shared tileset and palettes and -O and -S for shared symbol/output names. Also fixed the way shared runs were done: it excludes the parts to be shared from the individual export, and do an additional run with just the shared data afterwards.
Added GRF format and the options that go with it (-ftr, -fr)
Added "fake" compression options (-Z0, etc) for symmetry with the compression options. Like the other compression options, the size will be in the upper 24 bits of the first word.
Exit codes. Grit returns 1 on failure.
Some internal refactoring. Hope I didn't screw up things too badly.

Added batch file grind.bat for drag/drop conversion. (Yes, Dave, it's a batchfile, but sometimes you just want a quick sample without fussing.)
Project rename. git's now grit.
Changed the way directories work. All relative paths start from the current working directory, whatever that may be. This also fixes a bug when for dir-less -fx options (thanks dovoto).
Default filetype is now assembly (-fts). If you're using DKP or tonc template makefiles, this should not be a problem.
Added -We, -Ww, -Ws aliases for -W<n>.
Added no converted output option -ft!.

The batchrun and external tilefile support is still experimental. YHBW.