TINYGL: Put declaration of counting variable inside for-construct.
TINYGL: Use astyle to (semi-selectively) apply the code-formatting conventions to TinyGL.
TINYGL: Make read-only parameters in zmath const.

(This also changes a by-value pass in gl_M4_InvOrtho to const-reference,
thanks to Botje for pointing that one out).
TINYGL: Remove typedef from struct-definitions.
TINYGL: Update ChangeLog
Merge pull request #839 from somaen/tinyReformat

TINYGL: Reformat the code a bit, and some minor adjustments.