update comments for double free analysis
move options for enabling static analysis classes to own option interface
distuinguish between intraprocedural and interprocedural static analysis; restore InterCFG functionality from WriteCFG branch https://github.com/ckaestne/TypeChef/pull/22
fix parsing of static analysis options X/x vs S/s
Merge pull request #24 from ckaestne/canalysisoptions

ICAnalysisOptions and InterCFG