Added missing parameter type in documentation block. (+1 squashed commit)
Squashed commits:
[2ec7210] Updates to PHPDoc blocks.

In documentation block for Adapter\ElFinder\PhpcrDriver::_fopen, the $write parameter has been renamed to $mode, to harmonize with the code. This $mode parameter is never used, though.
Minor changes in MetadataInterface and MediaInterface documentation blocks.
Merge pull request #100 from ManneW/docblockfix

Minor updates to PHPDoc blocks.