Merge pull request #87 from malaverdiere/develop

Fixed access of SootMethod fields to private
code cleanup
We now force inlining of NullTypes. If this leads to an unused assignment of type "n = null" to a local n of type NullType, this is also force-removed. This helps prevent some issues with the LocalPacker and other components which are not designed to deal with this artificial type.
added a toString() method
Merge branch 'develop' of github.com:Sable/soot into develop
Scene fields are now private
Merge branch 'develop' of git://github.com/Sable/soot into develop