[twgit] Init feature 'feature-107': Have a cache file of feature's subject per repository.
Have a cache file of feature's subject per repository. #107
Minor fix for perfect result when executing unit tests in local.
Replace 'TWGIT_FEATURES_SUBJECT_PATH' by
'TWGIT_FEATURES_SUBJECT_FILENAME' in config file.
Merge branch 'feature-107' into release-1.12.0