Plonecli

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- add note for including install directory to $PATH
[fgrcon]

- Document the new `deprecated` and `info` options
[erral]

- modernize code for Python 3 support
[MrTango]

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- Sort templates on --list-templates/-l command output
[MrTango]

- Show deprecate flag and info for templates in template list
[MrTango]

- Use the now released click library in version >= 7.0, you have to uninstall plonecli-click before upgrading!
[MrTango]

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- Add -t and -s options to the test command
[kakshay21]

- Fix 33 ConfigParser.NoOptionError
[kakshay21]

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- Add plonecli config command to configure mrbob's global user settings
[kakshay21]

- Add versions -V/--versions command
[kakshay21]

- Add document commends -h, -V, test and config in README
[kakshay21]

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- Add test command to allow running test from plonecli
[MrTango]

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- Improve command line output with colors and remove verbose option
[MrTango]

- Add virtualenv as requirement and improve README
[MrTango]