Support for pc_align
pc_align: Compile fixes
libpointmatcher: Change checksum
libpointmatcher: change the hash
libpointmatcher changed again
libpointmatcher backported to work without c++-11 featuers
libpointmatcher: hash key changed again
Packages: Fix OSG3 compilation issues on OSX 10.8

Requires you to use crappy Apple compiler or one of the newer Clangs
(Hooray 3.3). The reason for this is that it apears osg3 is using some
Objective-C.
whitelist: Don't ship OSG DB
BB.py: Remove repeated flags inside environment
Packages.py: Expand dependencies of ISIS