Makes travis-ci script more robust against composer failures
Merge branch 'master' of https://github.com/Arcavias/arcavias-core
Uses GET instead of POST so back button works as expected
Fixes displaying error message if less than three chars are entered in search filter
Displays search hint always on top
Merge pull request #542 from nsendetzky/master

Fixes catalog search filter hint and improves browser back button handling