Use the new launch client in zuul server

Also rename the launcher modules to be consistent with how the merger
modules are named (and reduce redundancy).

Change-Id: I9a347966b0fe7c6aa41047e58c45ba5809868520
diff --git a/tests/base.py b/tests/base.py
index 2f77102..d888904 100755
--- a/tests/base.py
+++ b/tests/base.py
@@ -48,8 +48,8 @@
 import zuul.scheduler
 import zuul.webapp
 import zuul.rpclistener
-import zuul.launcher.ansiblelaunchserver
-import zuul.launcher.launchclient
+import zuul.launcher.server
+import zuul.launcher.client
 import zuul.lib.swift
 import zuul.lib.connections
 import zuul.merger.client
@@ -637,7 +637,7 @@
         self.worker.lock.release()
 
 
-class RecordingLaunchServer(zuul.launcher.ansiblelaunchserver.LaunchServer):
+class RecordingLaunchServer(zuul.launcher.server.LaunchServer):
     def __init__(self, *args, **kw):
         super(RecordingLaunchServer, self).__init__(*args, **kw)
         self.job_history = []
@@ -974,7 +974,7 @@
         old_urlopen = urllib2.urlopen
         urllib2.urlopen = URLOpenerFactory
 
-        self.launcher = zuul.launcher.launchclient.LaunchClient(
+        self.launcher = zuul.launcher.client.LaunchClient(
             self.config, self.sched, self.swift)
         self.merge_client = zuul.merger.client.MergeClient(
             self.config, self.sched)