GIT 0.99.3

GIT 0.99.3

Things have slowly but surely started to settle down, and the
http transport finally can natively grok packed repositories.
To give Pasky a good anchor point, hoping that he can start
split off the core part from Cogito, here is the 0.99.3, which
will be accompanied with its own tag.

Signed-off-by: Junio C Hamano <junkio@cox.net>