Introduce LPException
CPLEX done
Merge branch 'develop' into bug_lp
introduce LPException
CLP done but not tested
correction on PolytopeHull
Big mistake in LinearRelaxAffine2, a wrong break in the case
LPException: Soplex done
remove memory leaks
Merge branch 'develop' of https://github.com/ibex-team/ibex-lib into develop