use travis-support/master-2014-10-06
do not overwrite GH setup, set up GH, especially needs the api_url
Travis::Metrics.setup and bump travis-support and core
it's Travis::Logger now
remove Instrumentation
set pusher.host, pusher.port and pusher.scheme if present
remove deprecation warnings, fix github status spec
use jruby 1.7.12, bump things
bump travis-support
bump travis-support