Bump version to 1.7.2 for release

Merge pull request allure-framework#84 from pyatil/master

implement dynamic issue label, issue: allure-framework#60

Merge pull request allure-framework#80 from allure-framework/xdist_co…

…mpat

Xdist compatibility

Bump version to 1.7.0 for release

bump version

bump version

Bump version to 1.6.6

Bump setuptools version

To release allure-framework#72

bump version

bump version