runner: format for group_vars-files was changed to json
misc: unnecessary import was removed
Merge branch 'refactor' into develop
Merge branch 'develop' into features/json-group_vars
Merge branch 'features/json-group_vars' into develop
extract get_distribution_branch method from runtests
get rid of branch parameter
change collect_instances_params to function
specify config_format in testsuite_params
pass testsuite_params as file instead of raw string
doc: README file was updated
Merge branch 'itIGO-refactoring/runtests' into develop
misc: script for creating files with test parameters was added
runner: packages-dir option was removed
misc: option tests-config were renamed to path
fix: for checkout from reverbrain/grape when there is no specified revision
misc: possibility to modify test params were added back
Merge branch 'develop' into features/create-params
Merge branch 'features/create-params' into develop
fix: for not installing dependencies for grape packages