initial travis-ci
update travis-ci build deps
add c-ares dep
fix boost deps for travis ci
fix compiler env for travis ci
support newer boost context
update for newer boost::context >= 153
hack for older jansson than 2.3
fix typo
old jansson < 2.3 support
remove unused headers
use gcc 4.8 for travis ci build
fix syntax travis ci
fix syntax travis ci
remove test when using old jansson
run failing tests
update to gtest 1.7.0 release
fix broken tests
clean up travis ci
fix broken test