add CM_File::listFiles()
implemented switch between recursion and no recursion in FileSystemAdapter::listFiles()
implemented listFiles on CM_File
add tests for non-recursive listing by prefix
add test for CM_File::listFiles()
use array_merge instead of array_merge_recursive (typo)
dont return base-dir in AwsS3 listByPrefix
Merge branch 'master' of github.com:cargomedia/CM into filesystem-file-listing
use getPath() instead of _path field var
removed unneeded rtrim()
dont return "directories" in s3
Merge pull request #1334 from alexispeter/filesystem-file-listing

list files in directories on CM_File