largefiles: rename functions and methods to match desired behavior
The original intent was that the largefiles would primarily be in the
repository, with the global cache being only that--a cache. The naming
conventions and actual intent have both strayed. In this first patch, the
naming conventions are switched to match the actual intent, as are the
configuration options.
$ hg init
$ touch unknown
$ touch a
$ hg add a
$ hg ci -m "1"
$ touch b
$ hg add b
$ hg ci -m "2"
Should show unknown
$ hg status
? unknown
$ hg revert -r 0 --all
removing b
Should show unknown and b removed
$ hg status
R b
? unknown
Should show a and unknown
$ ls
a
unknown