Fixed retrieving of mimetype in Imagine\BinaryLoader
IO: add mimeType to BinaryFile when available
IO: Removed unused IOFactory
IO: Removed unused IOFactory
IO: todo update + phpdoc / exceptions
IO: Removed IOService::getMetadata + bc doc

Also re-implemented getExternalPath and getInternalPath in IOService
IO: small refactoring in DFS cluster
IO: Fixed IOService::getInternalPath
IO: Moved DFS to its own branch
CS
Merge pull request #1024 from ezsystems/cs

CS
IO: cs
Merge branch 'master' into EZP-23328-io_interfaces_split

Conflicts:
	eZ/Publish/Core/IO/Handler/Filesystem.php
IO: don't use deprecated mimeType property
IO: fixed wrong logic in mimeType handling