remove themes from url paths. Closes #512. Thanks @sbleon
remove themes from url paths. Closes #512. Thanks @sbleon

NUKnightLab/TimelineJS,landsurveyorsunited/TimelineJS,pom95/timeline,james-logan/TimelineJS,zstao/TimelineJS,matt-edgedesign/Timelinejs,landsurveyorsunited/TimelineJS,ryekee/TimelineJS,noikiy/TimelineJS,anxintiancai/TimelineJS,djaney/TimelineJS,cweems/api-timeline-js,matt-edgedesign/Timelinejs,ycaihua/TimelineJS,pom95/timeline,LauraHilliger/TimelineJS,djaney/TimelineJS,NUKnightLab/TimelineJS,wangjun/TimelineJS,deenjohn/TimelineJS,landsurveyorsunited/TimelineJS,angeliaz/TimelineJS,ycaihua/TimelineJS,LauraHilliger/TimelineJS,deenjohn/TimelineJS,pom95/timeline,CrossLead/TimelineJS,angeliaz/TimelineJS,wangjun/TimelineJS,ryekee/TimelineJS,JoaquinSiabra/TimelineJS,ryekee/TimelineJS,james-logan/TimelineJS,1modm/TimelineJS,noikiy/TimelineJS,ycaihua/TimelineJS,wangjun/TimelineJS,zstao/TimelineJS,james-logan/TimelineJS,NUKnightLab/TimelineJS,cweems/api-timeline-js,1modm/TimelineJS,JoaquinSiabra/TimelineJS,stea4lth/TimelineJS,CrossLead/TimelineJS,stea4lth/TimelineJS,djaney/TimelineJS,1modm/TimelineJS,deenjohn/TimelineJS,stea4lth/TimelineJS,noikiy/TimelineJS,zstao/TimelineJS,matt-edgedesign/Timelinejs,anxintiancai/TimelineJS,JoaquinSiabra/TimelineJS,anxintiancai/TimelineJS,LauraHilliger/TimelineJS