Aliases passed to `Container.connect()` are now unioned with already
present aliases.  `Container.disconnect()` also now takes aliases as
arguments which, if provided, are removed from the active aliases; the
network is only disconnected once there are no more aliases.  This is
intended to allow containers to have aliases that are managed by other,
dependent resources.

Requests 2.32 seems to have introduced some breaking changes.

This solves a bug where the executable search paths list was
deallocated before shutdown, but cleanup code needed `docker`.

Global MySQL server

See merge request !19

Add ports to http.redirect()

See merge request !18

Currently does not have the additional feature of labeling and using
the service across runs.

Image.build uses image cache

See merge request !17

This fixes a bug introduced by 8be88413
and hopefully makes Docker inspection a little easier to understand.

Changelog Note:
  `behave_util.docker`:
    - Adds `inspect()` which replaces `Item.inspect()` methods
    - Removes `Item` class
    > Note users will have to replace any method calls to the function.