Remove incorrect import from docs example
Merge pull request #78 from defuz/patch-1

Remove incorrect import from docs example
Add ability to name commands from a class attribute.
Add namespacing or implicit sub-manager support to commands.
Add ability to just pass in a command class instead of an instance.
Separate usage into usage/help/description

This commit implements a clear distinction between usage, help, and
description as in the argparse module. usage shows how the command
might be executed on the command line. help is a short description
for a command. description is a longer description for a command.

Before this commit, we didn't have a way to change description without
changing usage. This could be a nuisance for someone who wanted to see
the generate usage. For instance, if we ran `manage.py somecommand -h`,
we've seen something like this so far:

    usage: Some descriptions for the command.

    optional arguments:
      -h, --help            show this help message and exit
      ...

If we added usage manually to the docstring of the command, then the
output of `manage.py -h` would become ugly. The only way to get around
these problems is to use diffrent variables, namely help and description.
Merge pull request #80 from concordusapps/topics/instance

Add a few features to allow for command auto detection
Merge pull request #79 from clee704/master

Separate usage into usage/help/description
Prepare 0.6.3 release
Only pass  argument if a command's  accepts it.  Workaround for #71
Prepare 0.6.4 release
Change warning from UserWarning to DeprecationWarning so it is ignored by default
Prepare 0.6.5 release
Forgot include the setup.py version increment in last commit before tagging v0.6.5
Fix tests by not expliciting checking for the 'parents' argument (Command.create_parser sends all *args and **kwargs to the ArgumentParser constructor)
Prepare v0.6.6 release
Remove useless imports
The ability to access app instance in a command:

    manager = Manager(create_app)

    @manager.command
    def somecommand():
        do_something(manager.app)
Remove test cases since create_app will not be called.
Merge pull request #83 from lepture/access-app

Access app