Check in initial travis.yml file
Merge pull request #12 from petergoldstein/feature/travis_ci

Use Travis CI for Continuous Integration
Credits for last merge.
Dummy commit to test Travis
Fixes bug with implementation which caused check to happen more often
than required. Noticed because failed on case where two nodes to find lca
for were same, so added new test to that effect. At same time noticed that
some test cases were for dags, not trees, so removed those as only pass by luck
Revered formatting back to what it used to be
Merge pull request #71 from leocrawford/master

Fix problem with TarjanLca implementation
Credits for last commit.
create SimpleGraphPath class with edge list test
use correct parameter order for assertEquals
ensure simple graph path vertices are valid
remove unnecessary comment
implement and test start/end vertex methods
add JavaDoc
minor formatting change
add JavaDoc to constructor
add JavaDoc to getVertexList()
implement and test getWeight
organize and collapse imports
add header license info