rawspeed: preliminary canon eos 70d support
(cherry picked from commit 41a64dc0a6104287484848ec81d97509b849a271)
rawspeed: import svn rev 570
(cherry picked from commit b4e252006dbda354a561a9371677b32772fc955b)
(cherry picked from commit d0e47fe60259e51b3926b7d7535e47f071090ea1)
rawspeed: better diff on update
(cherry picked from commit de47a1e8cd7ae58d717d57b359b83339abbd376b)
(cherry picked from commit cbab7cbca5961b04e6c21fb93cc3379d4a0f62d7)
Pentax K20D enhanced colormatrix (thanks beowulf)
(cherry picked from commit 6bb2e7236873d30eb078d328a719ac2bc7ef4ce2)
(cherry picked from commit 9cd08243ccac51713d85284a176606fd9d37b9bc)
geo: don't install geotagging module when geo is disabled
(cherry picked from commit 6600eea96bcac3628eb58439bcf3f68da1deae28)
(cherry picked from commit 4a0dfdeb524591f0cc971da10780c676139e9f5c)