Fix #20.  xmlns attribute set multiple times.
Fix #20.  xmlns attribute set multiple times.

adozenlines/strophejs,Voiceworks/strophejs,diegocr/strophejs,ggozad/strophejs,joachimlindborg/strophejs,Voiceworks/strophejs,ggozad/strophejs,Rom4eg/strophejs,strophe/strophejs,metajack/strophejs,gabrielfalcao/strophejs,joachimlindborg/strophejs,ggozad/strophejs,gabrielfalcao/strophejs,strophe/strophejs,Rom4eg/strophejs,teambox/strophejs,Voiceworks/strophejs,damencho/strophejs,sualko/strophejs,joachimlindborg/strophejs,damencho/strophejs,sualko/strophejs,minddistrict/strophejs,m800-limited/strophejs,eidmanna/strophe-closure,m800-limited/strophejs,gabrielfalcao/strophejs,adozenlines/strophejs,teambox/strophejs,Rom4eg/strophejs,processone/strophejs,m800-limited/strophejs,diegocr/strophejs,diegocr/strophejs,eidmanna/strophe-closure,damencho/strophejs,processone/strophejs,processone/strophejs,strophe/strophejs,sualko/strophejs,minddistrict/strophejs,minddistrict/strophejs,adozenlines/strophejs,teambox/strophejs,metajack/strophejs