tests/test-merge-force.out

use 'x in dict' instead of 'dict.has_key(x)'

"in" is faster, and has_key will be removed in py3k

created new head
% local deleted a file, remote removed
abort: outstanding uncommitted changes (use 'hg status' to list changes)
resolving manifests
removing a
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
% should show a as removed
R a
% manifest. should not have a:
b