exported FEATURE_ORIGIN used on git-hf-feature to allow work on forks (features on fork and all the other tags in origin)
exported FEATURE_ORIGIN used on git-hf-feature to allow work on forks (features on fork and all the other tags in origin).
Added hubflow_push_latest_changes_to_feature_origin as a replace function for hubflow_push_latest_changes_to_origin function
Added hubflow_fetch_latest_changes_from_feature_origin for being sure that in a feature start we have the last version of our fork