[WIP] File storage interface
Create file config And make storage/files dir
Change FileStorageInterface
Add getName method in FileInterface
Change FileStorageInterface
Add getIdentifier method
Add LocalStorageTest
Fix LocalStorage and change FileStorageInterface
Change FileInterface adding setIdentifier
Merge branch 'master' into feature-file-storage
Merge pull request #80 from toiee/feature-file-storage

File storage interface
Modify test use FileInterface::getIdentifier
Merge branch 'master' into modify-file-repository-test
Merge pull request #84 from toiee/modify-file-repository-test

Modify file repository test
Add tearDown for DB cleaning
Merge pull request #86 from toiee/fix-file-repository-test

Add tearDown for DB cleaning
Merge branch 'master' into fix-cols-plugin