Adding support for loading the scripting resource as part of a framework,...

Adding support for loading the scripting resource as part of a framework, lacking the dSYM bundle, or if the bundle has no Pythonic resources whatsoever
Solving an issue where "command script import" would fail to pick the file indicated by the user as a result of something with the same name being in an earlier position in sys.path

llvm-svn: 167570