gitweb: Move git_get_last_activity subroutine earlier
gitweb: Move git_get_last_activity subroutine earlier

This is purely cosmetic.  Having git_get_* between two parse_* subroutines
violated a good convention to group related things together.

Signed-off-by: Jakub Narebski <a6a1517a087f9f64a72f41a0de57ff01fbb0e412@gmail.com>
Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git