First attempt to implement Try schedulers

lib/config.json

@@ -382,6 +382,11 @@
 					  "Fedora-x86_64-native-extended-gdbserver-m32",
 					  "Fedora-x86_64-cc-with-index",
 					  "Fedora-i686" ]
+		     },
+
+		     { "type" : "Try_Jobdir", "name" : "try_ssh",
+		       "jobdir" : "try_ssh_jobdir",
+		       "builderNames" : [ "Fedora-x86_64-m64" ]
 		     }
 		   ]
 }

master.cfg

@@ -969,6 +969,12 @@ changes to build on GDB."""
 
     return False
 
+def prioritizeTryBuilds (builder, requests):
+    for r in requests:
+        if r.properties.getProperty ('scheduler').startswith ('try'):
+            return r
+    return requests[0]
+
 ###############################
 #### Configuration loading ####
 ###############################
@@ -1051,6 +1057,8 @@ def load_config (c):
         except KeyError:
             pass
 
+        b['nextBuild'] = prioritizeTryBuilds
+
         c['builders'].append (b)
 
 load_config (c)