Cleaner execution of sed in the remote update script
Use sed a bit better when building hash lists from remote
Add 1.9.3-p447 binary ruby to OS X 10.6-10.9 and drop previous patch level.

Add 2.0.0 to OS X 10.9 binary rubies.
Add 1.9.3-p448 binary ruby to OS X 10.6-10.9 and drop previous patch level.

Add 2.0.0 to OS X 10.9 binary rubies.
Merge branch 'master' of github.com:rys/rvm