Claus bigintmat extensions
check version of grammar tokens for dynamic modules
changed return value of mod_init from "grammar"-version to "all identifier"-Version
fix: possible segfault in GCD when passing to extensions
fix: possible segfault when passing to extensions in sparse gcd
ZZ will become a reserved name
compatibility with intmat/intvec
avoid (version) output of 4ti2
removed duplicate entries from some test lists
div instead of / for int/bigint
more removed/fixed tests
Update Doxygen config
Doxygen Singular-colors + Logo
Better Doxygen docu
Merge pull request #613 from mmklee/gcd

Gcd
Merge remote-tracking branch 'origin/spielwiese' into spielwiese.patched