tests/test-merge8

color: enable branches support

This commit updates the branches command to use ui.label for the branch names
and the changeset.  This implementation allows assigning colors to the four
states of a branch: active, closed, current and inactive.  While you can
configure color for the four states, only current and closed have default colors
of green and black bold respectively.

#!/bin/sh

# Test for changeset ba7c74081861
# (update dirstate correctly for non-branchmerge updates)
hg init a
cd a
echo a > a
hg add a
hg commit -m a
cd ..
hg clone a b
cd a
hg mv a b
hg commit -m move
echo b >> b
hg commit -m b
cd ../b
hg pull ../a
hg update