[PATCH] Functions for managing the set of packs the library is using (whitespace...

[PATCH] Functions for managing the set of packs the library is using (whitespace fixed)

This adds support for reading an uninstalled index, and installing a
pack file that was added while the program was running, as well as
functions for determining where to put the file.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>