* Add check for extended attribute files ([PR](https://github.com/HEPData/hepdata-validator/pull/44), thanks to riga).
* Fixes for LibYAML issues ([PR](https://github.com/HEPData/hepdata-validator/pull/47) fixes [issue](https://github.com/HEPData/hepdata-validator/issues/45)).
* Added file size limit for data files ([PR](https://github.com/HEPData/hepdata-validator/pull/48) fixes [issue](https://github.com/HEPData/hepdata-validator/issues/43)).