build doxygen from source on travis-ci.  closes #129
build doxygen from source on travis-ci.  closes #129

JNeiger/robocup-software,JNeiger/robocup-software,RoboJackets/robocup-software,JNeiger/robocup-software,RoboJackets/robocup-software,RoboJackets/robocup-software,JNeiger/robocup-software,JNeiger/robocup-software,RoboJackets/robocup-software