Import accessibility data
Vocabularies for accessibility data
Removed intermediary mapping to use RDFLib fully
Added some accessibility k/v
Better check to handle boolean values
Added more properties
Added parking type and door entry type
OxPoints / import floorplan
Updated attributes names
Added building image
Fixed typo
Updated version of rdflib to 4.1.1
Added accessibility contact information
Added properties "has accessible toilets", "has access guide information"
Merge branch 'master' into places-oxpoints-accessibility-information

* master:
  Better check to handle boolean values
  Removed intermediary mapping to use RDFLib fully

Conflicts:
	moxie/places/importers/oxpoints.py
	moxie/places/importers/rdf_namespaces.py
Merge branch 'master' into places-oxpoints-accessibility-information

* master:
  Removed method not used anymore
Use urlencode to prepare query to Solr -- preparation to have multiple fq parameters
Index more alternative names from the Access Guide
Extracted handling of accessibility data
Refactored / extracted some methods