Non-antialiasing with FreeType 2 corrupts images.

[sdlime]

Not using antialiasing with TrueType fonts and FreeType 2 causes corruption of 
GD image output. Most likely a GD/FreeType problem, but I told John that I 
would patch both versions of the GD/FreeType code to fix font rendering with 
non-antialiased fonts. With FreeType 1 there is an error in his code that 
always requests grayscale pixmaps even with no antialiasing. It should request 
a bitmap instead. Fix is to add a key to his caching code and this was already 
written for versions 3.4 and earlier. I suspect the same problem exists with 
FreeType 2 since it uses the same caching code, however since not setting the 
antialias flag corrupts the image I can't tell. Will have to fix that first.

Workaround is to use antialiasing with TrueType fonts.

[sdlime]

We've come a long way since this bug was written. Closing...

Steve