Honour the exec bit when we go back in time.
Fixes
issue801.
Fix file-changed-to-dir and dir-to-file commits (
issue660).
Allow adding to dirstate files that clash with previously existing
but marked for removal. Protect from reintroducing clashes by revert.
This change doesn't address related issues with update. Current
workaround is to do "clean" update by manually removing conflicting
files/dirs from working directory.
hgweb_mod: update unidiff() calls and finish
e5eedd74e70f job