Update README.md
Merge branch 'master' of https://github.com/rbock/sqlpp11
Started to integrate with Travis CI
Updated credits a bit
Bugfix in Travis config
Exclude clang from Travis and use g++-4.8

clang is missing libc++ (might add that later)
Next attempt to use g++-4.8 with Travis
Yet another try to get Travis CI going with g++-4.8
Fixed test_sqlpp_test_constraints to work with out of source build
Merge branch 'release/0.27'

Conflicts:
	.travis.yml
Merge tag '0.27' into develop

Integrated with Travis CI