Remove type check of save_db()
src(model_initiator.py): fix unexpect error
src(core.py): rename dispatch_thread_list to thread_list
src(test_core.py): fix tests due to variable rename
Merge pull request #44 from imZack/develop

Fix #28 and rename dispatch_thread_list to thread_list
src(test_model_iniator.py): speed up model_iniator tests
src(session.py, test_session.py): speedup session's tests
Merge branch 'feature/speedup_test' into develop
Merge pull request #45 from imZack/develop

tests speed up!
Fix conflict

Merge branch 'develop' of github.com:Sanji-IO/sanji into develop

Conflicts:
	sanji/model_initiator.py
	tests/sanji/test_model_initiator.py
Merge pull request #47 from ckgczarzar/develop

:+1:  raise exception when save db with wrong type.
Change the database extension from .backup.json to .json.backup and
.factory.json to .json.factory for easy to identify which file is the
factory one.
Merge remote-tracking branch 'upstream/develop' into develop