Make it possible to specify the HEAD for the internal findUpstreamBranchPoint function.
tree7b2d9ef980e8c0c5bbd3b5646961ace89cc35d9e
-rw-r--r-- 42 .gitignore
-rw-r--r-- 341 Makefile
-rwxr-xr-x 57787 git-p4
-rw-r--r-- 28 git-p4.bat
-rw-r--r-- 5645 git-p4.txt
-rwxr-xr-x 11628 hg-fast-export.py
-rwxr-xr-x 2511 hg-fast-export.sh
-rw-r--r-- 2091 hg-fast-export.txt
-rwxr-xr-x 4369 hg-reset.py
-rwxr-xr-x 1387 hg-reset.sh
-rwxr-xr-x 2546 hg2git.py
-rw-r--r-- 6336 svn-archive.c
-rw-r--r-- 5227 svn-fast-export.c
-rwxr-xr-x 5505 svn-fast-export.py