Fixed bugs and added UI safe handling procedures

Added back-ups for ILAB data.  Will use back-ups if data is lost.
Fixed double click bug and moved some add/mod UI handling within callback.
Added warning to import data.  Data will not update for new imported trial information.
UI title reflects usage state.  Explicit warning when user interrupts state before completion.

Closes-Bug: Double-click
Merge branch 'master' of https://github.com/krh5058/cfg_datatool