made a class to handle the intertimeslice weight connections
made nodes red when hot, blue when cold
changed orientation of node id, put it in middle of node
refactored dijsktras to be completely indedpentant of vertex methods
filled out some documentation
fixed a bug that would connect vertices of different timeslices in gmlparser
revised the bug fix so the program prints an error message and attempts to continue
added tests for inter-timeslice classes
removed a dead store
filled out a test for timeslice edges