HXL namespace on vocab webpage is missing #

https://github.com/hxl-team/HXL-Vocab/blob/master/Tools/static/index.html states namespace as `http://hxl.humanitarianresponse.info/ns/` however, the vocabulary at https://github.com/hxl-team/HXL-Vocab/blob/master/Tools/hxl.ttl states `http://hxl.humanitarianresponse.info/ns/#` as the namespace.

See also: http://hxl.humanitarianresponse.info/ns/index.html
