set default value for instance_name
align arguments
rewrite tests' configs collection
get rid of unused instance variables
rewrite collect_instances_params
Merge branch 'hotfixes' into develop
shorten invocation chains
remove redundant key access
add tests' configs dir parameter
tests: different_versions tests can be used now for any elliptics versions
Merge branch 'refactoring/runtests' of https://github.com/itIGO/elliptics-qa into itIGO-refactoring/runtests
Merge branch 'itIGO-refactoring/runtests' into develop
tests: setup/teardown scripts were added for fastcgi tests
misc: networking limitation functions were moved to elliptics_testhelper module
This sctipt utilizes pdoc to generate reST docs.
misc: unnecessary imports were removed
misc: unnecessary keyword parameter passing was removed
runner: possibility to use variables in test configs was refactored
runner: get rid of implicit test options modification
misc: test configs were moved from tests to separate directory