added phase getter
added id getter, changed constructor to append unique (int) ID to all objects
added mutator to remove provided objects from set, removed focal_* methods
removed strand getter (is now implemented in subclass StrandedFeature). node is now a getter/setter
now subclasses StrandedFeature
adding simple logger class
adding simple class for stranded features
factored out a lot of functionality to lib/ classes
changed some paths for testing
added more skip patterns