New version 5.0

The new version includes the following features:
- Revision of metadata profiles for dataset and services in compliance with the latest versions of the implementation guidelines of the INSPIRE Directive [1] and the Spanish Profile for Metadata (NEM) [2].
- Mechanisms to guarantee the compliance with the metadata requirements established in the previous guidelines have been improved, thanks to the online connection with the new metadata validation service from Spanish SDI (IDEE) [3].
- Changed colors of mandatory, optional and conditional icons of metadata editor.
- Fixed menor bugs (in Marc21 Import-Export features, capabilities extraction, metadata editor, etc.)
- Added new thesaurus: DroughtVocabulary, EPSG_referenceSystem_Europe, EPSG_referenceSystem_Spain.

[1] INSPIRE Metadata Implementing Rules for datasets and services (version 1.3): http://inspire.ec.europa.eu/documents/Metadata/MD_IR_and_ISO_20131029.pdf
[2] Spanish Profile for Dataset Metadata (NEM version 1.2): http://www.idee.es/resources/documentos/NEMv1.2.pdf
Spanish Profile for Services Metadata (NEM-S version 1.0): http://www.idee.es/resources/documentos/NEM-S_v1.0.pdf
[3] Metadata validation service from from Spanish SDI: http://www.idee.es/validator/