Adds SQL statement for aggregating list items
Merge pull request #22 from nsendetzky/master

Adds SQL statement for aggregating list items
Extends aggregate SQL statements to allow sortations and correct slicing and adds test
Merge pull request #23 from nsendetzky/master

Extends aggregate SQL statements to allow sortations and correct slicing and adds test
Clears the manager/controller factory caches to avoid side effects
Merge pull request #24 from nsendetzky/master

Clears the manager/controller factory caches to avoid side effects
Adds travis-ci status
Uses only release numbers for tags
Uses abstract class for locale string handling
Merge pull request #25 from nsendetzky/master

Doesn't install Arcavias Core dev packages for travis-ci tests
Removes dependency as it must be in the main composer file
Uses phing provided by composer
Adapts travis-ci file to changes in composer handling
Fixes phing path
Merge pull request #26 from nsendetzky/master

Uses phing/phpunit/phpcs provided by composer, adapts travis-ci file and removes installer dependency
Implements cache adapter for TYPO3 and tests
Merge pull request #27 from nsendetzky/master

Implements cache adapter for TYPO3 and tests
Fixes type hint in constructor and makes cache keys compatible with TYPO3 cache idendifiers
Merge pull request #28 from nsendetzky/master

Fixes type hint in constructor and makes cache keys compatible with TYPO3 cache idendifiers
Fixes missing output due to wrong check