upgrade slf4j
upgrade logback
upgrade h2
upgrade hsqldb
upgrade javassist
add travis build file
add dep on spring-context
upgrade spring
Merge branch 'travis' into depupgrades
add gitignore file
avoid compile warnings due to deprecated code in junit
Merge branch 'travis' into junitwarnings
upgrade maven compiler plugin
maven best practice: define minimum required maven version
Merge branch 'travis' into pluginupgrades
Merge pull request #28 from davidkarlsen/depupgrades

Dependency upgrades
Merge pull request #29 from davidkarlsen/junitwarnings

avoid compile warnings due to deprecated code in junit
Merge pull request #30 from davidkarlsen/pluginupgrades

Pluginupgrades