added ^^xsd:string to "cito:" in turtle for figures
changed rdf:value type from integer to float in turtle for figure; will change back when only extract value to right of decimal point in figure number
Inverted westBoundLongitude and eastBound longitude in turtle for figures because - is west
Inverted east and westbound longitude in turtle for figures (west = -)
Shortened one of the lines in provimageactivity.ttl.ep
Fixed minor indenting inconsistency in turtle for datasets
Replaced foaf:firstName with foaf:givenName in turtle for person since firstName really is first name + middle initial (see e.g. http://wiki.foaf-project.org/w/NamesInFoaf)