Adds full support for ISO 8601 date syntax
Adds full support for ISO 8601 date syntax

See
http://stackoverflow.com/questions/21686539/regular-expression-for-full-
iso-8601-date-syntax

pjdufour/project-open-data.github.io,fedspendingtransparency/fedspendingtransparency.github.io,Chuck8080/opendata,cmurphyUSAID/implementation-guide,pjdufour/project-open-data.github.io,portofsandiego/project-open-data.github.io,fedspendingtransparency/fedspendingtransparency.github.io,pjdufour/project-open-data.github.io,fedspendingtransparency/fedspendingtransparency.github.io,pjdufour/project-open-data.github.io,portofsandiego/project-open-data.github.io,judecalvillo/project-open-data.github.io,judecalvillo/project-open-data.github.io,Chuck8080/opendata,bpushed/project-open-data.github.io,fedspendingtransparency/fedspendingtransparency.github.io,portofsandiego/project-open-data.github.io,portofsandiego/project-open-data.github.io,bpushed/project-open-data.github.io