Fixed several places where low precedence 'or' was used in assignment instead of '||'.  Not sure issue 91 is fixed yet though.
Fixed several places where low precedence 'or' was used in assignment instead of '||'.  Not sure issue 91 is fixed yet though.

dbooth-boston/rdf-pipeline,dbooth-boston/rdf-pipeline,dbooth-boston/rdf-pipeline,dbooth-boston/rdf-pipeline