travis: fix multiline yaml and CXX variable
Merge pull request #27 from carstene1ns/upload_fix

travis: fix multiline yaml and CXX variable
Guess that UNK61 is operator+=
Merge branch 'master' of https://github.com/FGRE/libnpengine
Use std::mutex instead of boost::mutex
Guess that UNK63 is operator-=
libnpengine 0.3.2
travis: workaround broken notification system
travis: shorten message
Merge pull request #28 from carstene1ns/travis_notify

better travis notification