Minor fixes: 'and' -> 'an', full stops. Fixed a couple places where we still wrote "URL" instead of "EntryPoint". Implemented the rename from PropertyConstraint to PropertyValueSpecification.
Minor fixes: 'and' -> 'an', full stops.
Fixed a couple places where we still wrote "URL" instead of "EntryPoint".
Implemented the rename from PropertyConstraint to PropertyValueSpecification.

twamarc/schemaorg,vholland/schemaorg,gkellogg/schemaorg,hschema/schemaorg,mortizbank/schemaorg,dbs/schemaorg,ynh/schemaorg,callahanchris/schemaorg,mortizbank/schemaorg,dbs/schemaorg,tfrancart/schemaorg,lanthaler/schemaorg,ynh/schemaorg,lanthaler/schemaorg,haonaturel/schemaorg,quantegy/schemaorg,gkellogg/schemaorg,quantegy/schemaorg,sdo-sport/schemaorg,lanthaler/schemaorg,haocafes/schemaorg,vholland/schemaorg,unor/schemaorg,cesarmarinhorj/schemaorg,cesarmarinhorj/schemaorg,dbs/schemaorg,schemaorg/schemaorg,haonature/schemaorg,URXtech/schemaorg,sdo-sport/schemaorg,mfhepp/schemaorg,ynh/schemaorg,westurner/schemaorg,twcctz500000/schemaorg,unor/schemaorg,vholland/schemaorg,ya7lelkom/schemaorg,twamarc/schemaorg,twamarc/schemaorg,vemmaverve/schemaorg,hschema/schemaorg,ya7lelkom/schemaorg,gkellogg/schemaorg,vholland/schemaorg,schemaorg/schemaorg,haonature/schemaorg,tfrancart/schemaorg,Jonadabe/schemaorg,hschema/schemaorg,dbs/schemaorg,unor/schemaorg,tfrancart/schemaorg,schemaorg/schemaorg,quantegy/schemaorg,pwz3n0/schemaorg,gkellogg/schemaorg,schemaorg/schemaorg,pwz3n0/schemaorg,haocafes/schemaorg,callahanchris/schemaorg,mfhepp/schemaorg,haonature888/schemaorg,vemmaverve/schemaorg,ya7lelkom/schemaorg,haonaturel/schemaorg,sdo-sport/schemaorg,twcctz500000/schemaorg,pwz3n0/schemaorg,schemaorg/schemaorg,URXtech/schemaorg,tfrancart/schemaorg,mortizbank/schemaorg,haonature888/schemaorg,Jonadabe/schemaorg,cesarmarinhorj/schemaorg