added module 'cuda'
added CUDA support
fixed cuda support, added module type HEADER
added workaround for FindCUDA's empty -I argument bug
added skia and boost data_time to third_party
added -lz to target_link_libraries for every module
updated git version of skia
made define_module independent of project source directory
fixed path for cuda library lookup
Merge branch 'master' of github.com:funkey/cmake
fixed handling of several SOURCES in define_module
Merge branch 'master' of github.com:funkey/cmake
enabled setting of Gurobi_ROOT_DIR via environment variable GUROBI_ROOT_DIR
added third-party 'vigra-git'
Merge remote-tracking branch 'funke/master' into catmaid

Conflicts:
	include/define_module.cmake