Added constant string propagation to ConstantPropagatorAndFolder
Merge pull request #254 from Sable/jspaeth

Added constant string propagation to ConstantPropagatorAndFolder
improved performance using a new unsafe getter
Merge branch 'develop' of github.com:Sable/soot into develop
performance improvements through unsafe method/field getters
Merge remote-tracking branch 'sable/develop' into flow-insensitive
Track over type boundaries.