Fixed the bug in the line class that would return the value for the first line's next vertex as being nil.
Fixed resize method. Vertex class should be good to go now.
working on DFS
Have DFS class working and test class written.
working on line detection(incomplete)
Merge branch 'master' of https://github.com/shamor/Senior-Design-I
Pulled from Sam to get code for the line detection method. Made corrections
so that the code for detecting lines would compile.