Add traceback to exception when getting CSW identifiers
Remove unused imports
Added useful logging to the validation report. Useful to have the date (i.e. version) in the name of the Eden schema.
Merge branch 'master' of github.com:okfn/ckanext-spatial
Get the validation XML to be included in the distribution.
Added new Parslow Constraints Schematron to test. Added command to validate on the command-line.
Comments about on cardinality/multiplicity.
Added lower level tests for bbox search (at the lib level), complementing the API level ones.
Adding Parslow constraints schema previously missed.
Spatial query can now be ordered. Does not play nicely with SOLR options - just uses that to get the facets counts and return each result. Have added performance tests for two alternative queries.
Add XSL for converting Gemini XML to nice HTML, used in controllers/api.py.
More debug logging added to WAF harvester.
Merge branch 'ogpd' of https://github.com/fraunhoferfokus/ckanext-spatial into fokus/ogpd
Make licenses module conform to PEP8 conventions

PEP8 is a style guide for coding conventions in Python, especially for
the Python code comprising the standard library in the main Python
distribution. For consistency reasons I have adapted that style to the
licenses module and hopefully to all following code.

Signed-off-by: Konrad Reiche <konrad.reiche@fokus.fraunhofer.com>