[ci skip]

document query command

[ci skip]

[ci skip]

add a `query` command

as suggested by @leorochael

for continuous integration

Typo fix: 'uuinstall' to 'uninstall' in comment

[ci skip]

[ci skip]

debugger: Exit with error code on debugged error

When buildout encounter an error, program exists with error code 1, this
should also be the case when exiting from a debugger session when
running with -D option.

Closing #464

Fix most Deprecation and Resource warnings.

[ci skip]

[ci skip]

[ci skip]

[ci skip]

Fix dependencies between zc.buildout and zc.recipe.egg after zc.recipe.egg 2.0.6 release

[ci skip]

[ci skip]

[ci skip]

[ci skip]

Add 'allow-unknown-extras'

On Python 3, these made the build output very hard to read (e.g., https://travis-ci.org/buildout/buildout/jobs/394026829)

On Python 3.7, these could actually break the doctests.

Closing the files should get us closer to being able to pass the tests with PyPy.