commit: simplify manifest commit

commit: explain how to abort commit in editor

commit: move editor outside transaction The commit editor is now invoked before files and manifest are committed. The editor is now run with only the wlock held and aborting an edit no longer requires rolling back a transaction. Changes to files during a commit still result in undefined behavior. (This is preliminary work for committing subrepositories)

convert: directly use nullid

Merge with stable

Fix how setup.py identifies the Mercurial version. There is a problem with setup.py where it will not identify the Mercurial version properly when not being ran in within a repository even if mercurial/__version__.py exists. To fix, use mercurial.__version__.version when available before defaulting to "unknown". (Using mercurial.util.version() is not an option due to a dependency issue where osutil can be referenced before it is built.)

templater: replace eval with closure

win32mbcs: remove silly eval

merge with crew

addremove/findrenames: find renames according to the match object (issue1527) Instead of only finding similarities in the added/removed files found by the addremove step, follow the match object: hg addremove -s80 foo -> add and removes files in foo + find similarities between files in foo hg addremove -s80 -> add and removes files in the whole repo + find similarities between files in the whole repo hg import --similarity will still work correctly (only find similarities between files found in the patch).