Implemented visit_call for generic walker. It can only handle the generic case where all of the params are required.
Added test file for stores and loads. Also started looking into the visits.
Fixed how args were handled from a visit_call. Changed how indexing into a ClassDefBean works.
Merge pull request #44 from daviis/visitCall

Added visit_call
Almost have variables working
Merge from master
Got variable assigning and loading working. Working in some thoughts on exceptions instead of printing to stdout
Fixed the exception things so they would print the right stuff.
Merge pull request #45 from daviis/visitLoadStore

Visit load store / exception framework
Merged in master