Downloading all the binaries of all platforms can take quite long,
especially for slow connections, which may deter people from using
this script and, therefore, to disregard security altogether.
This change introduces the new possibility of specifying the
platform along with the version number, so that only the binaries
that contain the platform name are downloaded.
The current default URL doesn't seem to exist.
Unsure wether this should be updated to point to 0.7.2 now or wether
just to wait untill 0.8.0 is out and point there?
Commit also fixes a minor typo in the macdeploy notes.txt
Version numbers changed from 0.7.99 to 0.8.0
Set CLIENT_VERSION_IS_RELEASE to remove pre-release warning
Updated copyright in COPYING and doc/READMEs to 2013
Updated doc/release-notes.txt
Andres G. Aragoneses