_get_url now use api version
_get_url now use api version

tsarnowski/jira-python,jameskeane/jira-python,systemadev/jira-python,akosiaris/jira,kinow/jira,pycontribs/jira,awurster/jira,m42e/jira,awurster/jira,kinow/jira,stevencarey/jira,dwmarshall/pycontribs-jira,rayyen/jira,dbaxa/jira,coddingtonbear/jira,stevencarey/jira,dbaxa/jira,coddingtonbear/jira,pycontribs/jira,VikingDen/jira,dwmarshall/pycontribs-jira,m42e/jira,jameskeane/jira-python,tsarnowski/jira-python,rayyen/jira,VikingDen/jira,systemadev/jira-python,milo-minderbinder/jira,milo-minderbinder/jira,akosiaris/jira