Add cmf:media + cmf:image mixin + add unit tests for file and image
Attempt to fix php5.3 segmentation fault
CND: revert moving mediaNode declaration
File model: update to changed phpcr BadMethodCallException
ignore 5.3 build failures, yes streams are flaky, more so with 5.3
Merge pull request #73 from symfony-cmf/cmf_file_ignore_5_3

ignore 5.3 build failures, yes streams are flaky, more so with 5.3
Updated changelog for model changes
Merge pull request #63 from symfony-cmf/cmf_file

Add cmf:media + cmf:image mixin