Update DiPBaCIO.h

Fixing bug identified in PReMiuM by Silvia on 22 Dec 2012
Update DiPBaCModel.h

Incorporating fixes for bugs from PReMiuM package on 22/12/12
final fixes to postprocess for this version
Merge branch 'master' of github.com:DaveHastie/DiPBaCpp
Update DiPBaCProposals.h

Fixed bug found at end of second label switching move by Silvia
Merge branch 'master' into ICare