Release 1.0.0a6

[sdispater]

Added

• Added support for markers inverse (#21).
• Added support for specifying that git dependencies should be installed in develop mode (#23).
• Added the ability to specify build settings from the Poetry main configuration file (#26).
• Added the ability to disable the generation of the setup.py file when building (#26).

Changed

• Relaxed licence restrictions to support custom licences (#5).
• Improved support for PEP-440 direct references (#22).
• Improved dependency vendoring (#25).

Fixed

• Fixed the inability to make the url dependencies optional (#13).
• Fixed whitespaces in PEP-440 constraints causing an error (#16).
• Fixed subpackage check when generating the setup.py file (#17).
• Fix PEP-517 issues for projects using build scripts (#12).
• Fixed support for stub-only packages (#28).