Correct a number of issues

There were a number of careless mistakes in the feature, correct
the bad usage and typos.

confluent_server/confluent/asynchttp.py

@@ -69,7 +69,7 @@ class AsyncTermRelation(object):
         self.termid = termid
 
     def got_data(self, data):
-        self.async.add(data, self.termid)
+        self.async.add(self.termid, data)
 
 
 class AsyncSession(object):
@@ -82,8 +82,8 @@ class AsyncSession(object):
         self.consoles = set([])
         self.reaper = eventlet.spawn_after(15, self.destroy)
 
-    def add(self, rsp, requestid):
-        self.responses.append((rsp, requestid))
+    def add(self, requestid, rsp):
+        self.responses.append((requestid, rsp))
         if self._evt:
             self._evt.send()
             self._evt = None
@@ -93,7 +93,7 @@ class AsyncSession(object):
         # to what object (since the callback does not provide context
         # for data, and here ultimately the client is responsible
         # for sorting out which is which.
-        termrel = AsyncTermRelation(['HTTP_CONFLUENTREQUESTID'], self)
+        termrel = AsyncTermRelation(env['HTTP_CONFLUENTREQUESTID'], self)
         self.termrelations.append(termrel)
         return termrel
 
@@ -144,7 +144,7 @@ def run_handler(hdlr, env):
 
 def get_async(env, querydict):
     global _cleanthread
-    return _asyncsessions[querydict['asyncid']]['asyncsession']
+    return _asyncsessions[env['HTTP_CONFLUENTASYNCID']]['asyncsession']
 
 
 def handle_async(env, querydict, threadset):

confluent_server/confluent/httpapi.py

@@ -423,7 +423,7 @@ def resourcehandler_backend(env, start_response):
                 return
             sessid = _assign_consessionid(consession)
             if async:
-                async.add_consolesession(sessid)
+                async.add_console_session(sessid)
             start_response('200 OK', headers)
             yield '{"session":"%s","data":""}' % sessid
             return