list command now show ascending ordered list
manual sorting of commands and summaries

commands.get_summaries() will now yield instead of returning a list.
Merge pull request #805 from gvalkov/command-order

manual sorting of commands and summaries
Merge pull request #806 from socketubs/list-ordered

Sort the packages list in ascending order
update authors file
simpler, local --root test
Merge pull request #807 from qwcode/root_test

simpler, local --root test
fix new travis git config errors
Corrected a few typos
Merge pull request #808 from lemonad/develop

Corrected a few typos
update authors
mention PIP_CONFIG_FILE as a way use an alternate config file
switch to a mirror in test to get full pass
Moved the command description into the command class docstring to follow Python best practices.
Fixed doc build errors.
Fixed a whole bunch of cosmetic problems, mostly to adhere to PEP8.
Fixed import error in test module.
Merge branch 'develop' into local-configs
Fix up tests to support the lazy creation of WorkingSet()