BRANCH 4.1: fix for bad check-in
BRANCH 4.1:
   added checkin_type to add_file() API call so one can specify auto or strict
Merge branch '4.1' of https://github.com/Southpaw-TACTIC/TACTIC into 4.1
BRANCH 4.1:
  fixed a problem in saving timestamp in Sqlite
  updated the naming, search and sql tests to work better with Sqlite
BRANCH 4.1:
  only run DbContainer.release_thread_sql() for deleting a sqlite project
BRANCH 4.1:
   up the VERSION to 4.1.0.v02