fixed opencv source location, 2.4.5 not available on sf.net anymore#11

Merged

doudou merged 3 commits intorock-core:masterfrom

planthaber:opencv

Oct 31, 2014

Commits on Sep 29, 2014

fixed opencv source location, 2.4.5 not available on sf.net anymore
planthaber
committed
also, opencv-2.4.9 is only available as .zip, not as tar.gz
planthaber
committed

Commits on Oct 30, 2014

updated opencv source location, 2.3 not available anymore, use 2.3.1 to keep compatibility
planthaber
committed