category creation fix - remove submit button from kwargs
category creation fix - remove submit button from kwargs

realityone/flaskbb,SeanChen0617/flaskbb-1,qitianchan/flaskbb,qitianchan/flaskbb,China-jp/flaskbb,realityone/flaskbb,China-jp/flaskbb,zky001/flaskbb,emile2016/flaskbb,China-jp/flaskbb,lucius-feng/flaskbb,SeanChen0617/flaskbb-1,dromanow/flaskbb,zky001/flaskbb,SeanChen0617/flaskbb,lucius-feng/flaskbb,SeanChen0617/flaskbb-1,SeanChen0617/flaskbb,lucius-feng/flaskbb,emile2016/flaskbb,dromanow/flaskbb,realityone/flaskbb,SeanChen0617/flaskbb,qitianchan/flaskbb,emile2016/flaskbb,zky001/flaskbb,dromanow/flaskbb