Add new branch info to templater and use it in map-cmdline.default.
The template currently shows old (hg log -b style) branch tags, too,
but not in the same way as the built in changeset_printer.
adding foo
adding bomb
adding a.c
adding dir/a.o
adding dir/b.o
! a.c
! dir/a.o
! dir/b.o
? .hgignore
a.c: unsupported file type (type is fifo)
! a.c
# test absolute path through symlink outside repo
A f
# try symlink outside repo to file inside
abort: ../z not under root