Also renamed with_status to extended_output.
The method_missing function needs to be modified, as it does a kwargs.pop(xxx, None); which resulted in with_excpetions=None -> False all the time...
Test should follow tomorrow.

Having execute() use a different directory is an important piece
of API information so I added more documentation about it and
renamed the flag to just "keep_cwd" since that's shorter and simpler.

Signed-off-by: David Aguilar <davvid@gmail.com>

* commit 'sverre/master':
  Added a with_keep_cwd option
  Improved the GIT_PYTHON_TRACE=full output format
  Added /dist to .gitignore

Conflicts:

	lib/git/cmd.py

Signed-off-by: David Aguilar <davvid@gmail.com>

In order to avoid the expense of parsing .git/config
just to know whether or not a repository is bare
at __init__ time, we just pass an optional flag to
Git.__init__():
	bare_repo with a default value of False.

Repo.init_bare() was updated to pass this flag.

We could have an optional Git.read_bare_status() function
that does the expensive lookup.  Then, users can optionally
call it at runtime if they really need to know whether or not
a repository is bare.  That seems like a decent tradeoff between
speed, correctness, and common use cases.

Signed-off-by: David Aguilar <davvid@gmail.com>

When executing commands, if the with_keep_cwd option is
specified, the current working directory will be set to
os.getcwd() instead of the directory containing the
.git directory.

It now also shows stderr if there was any on it, and only
shows stdout if there was any output. Also added a '->'
between the command and the return value as a visual clue.

This is a fix on top of Govind's latest performance improvement.

self._cwd was always set to self._git_dir which means
a lot of commands that require work trees were not available
to GitPython.  Execute now uses self._cwd which is equal to
self._git_dir by default, and self.get_work_tree() if a work tree
exists.

Signed-off-by: David Aguilar <davvid@gmail.com>