fix #86 original image is replaced by image with same name
add logging
throw exception when it tries to overwrite exists file
Migrated to SuluTestCase
Do not use hard coded IDs for MediaTypes

- Use their names instead
Updated travis
change exception name for local storage conflict, delete logger comment from services xml
Merge branch 'develop' into bugfix/86
added logger to service definition
add tests
fix test clean up
Merge branch 'bugfix/86' of git://github.com/sulu-cmf/SuluMediaBundle into bugfix/86
Updated travis
Merge pull request #87 from sulu-cmf/bugfix/86

[BUGFIX] original image is replaced
Merge branch 'develop' of git://github.com/sulu-cmf/SuluMediaBundle into enhancement/updated-tests

Conflicts:
	Tests/Functional/Controller/MediaControllerTest.php
Merge branch 'enhancement/updated-tests' of git://github.com/sulu-cmf/SuluMediaBundle into enhancement/updated-tests
Merge branch 'enhancement/updated-tests' into develop
add test
Merge branch 'develop' of git://github.com/sulu-cmf/SuluMediaBundle into feature/cache-headers
add response header test