Added getFunctionsByFilename as a lookup function.
Removed debug-message.
Additional utility steps for traversals in calls.
Added a test to ensure that USE/DEF-edges for statements don't occur multiple times.
Test for condition nodes in conditional expressions.
Added functionToASTNodes.
Added functionToFile.
Follow symlinks when loading steps. Use os.path.join instead of simple concat.
Feature: allow multiple step dirs.
Fixed a test.
Slight fix for README.