make --style=compact look for map-cmdline.compact.
change name of key in map file from changelog to changeset.
rename command map files to start with map-cmdline.
rename ui.logmap to ui.style in hgrc.
now --style=foo does this:
tries to open foo as file.
tries as map-cmdline.foo in template path.
tries as foo in template path.
1:3aa14bbc23d9
0:8633637036c1
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8633637036c1
8633637036c1+
8633637036c1
3aa14bbc23d9 tip
merging file1
3aa14bbc23d9 tip
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