Update README.md
Fix API module name in system test

Change-Id: I693c9c6d5c19ff53639ae3b63b79a917c0d9f9c0
Merge branch 'master' of github.com:JeroenDeDauw/WikibaseQuery
Indicate this is a MW extension in the composer file

Change-Id: I21ac4860e90b8e341cf25da33ed10d968a097db1
Remove postgres build for now

Change-Id: I56cf1c3ff27400e3aefd727a75ca95a362c05c23
Speed up TravisCI builds

Change-Id: I8a9737b1e4f5a183265283ad86900262d6fa5300
Update .travis.sh