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 base
abort: cannot delete applied patch c
Now at: b
a
b
a
b
series
status
Now at: a
a
b
series
status
1 New patch: a
0 base
abort: cannot delete revision 3 above applied patches
f
4 New patch: f
3 New patch: e
2 New patch: d
1 New patch: a
0 base