* Added OverhaveAdminLinkSettings and ability to set admin link for feature via OVERHAVE_ADMIN_URL
* Updated OverhaveProjectSettings and added ability to set Git project link for feature file via OVERHAVE_GIT_PROJECT_URL
* Changed names of variables: links_keyword -> tasks_keyword, browse_url -> task_tracker_url in OverhaveProjectSettings
* Updated tests
* Updated libs