Add Erlang 4 and 5 to CI.

Author: majek

test.py

@@ -68,14 +68,14 @@ def skip(cwd_cmd, to_skip):
     'tut2': (gen('new_task', arg='%(arg)s'), gen('worker'), '%(arg)s'),
     'tut3': (gen('emit_log', arg='%(arg)s'), gen('receive_logs'), '%(arg)s'),
     'tut4': (skip(gen('emit_log_direct', arg='%(arg)s %(arg2)s'),
-                  ['erlang', 'php']),
+                  ['php']),
              skip(gen('receive_logs_direct', arg='%(arg)s'),
-                  ['erlang', 'php']),
+                  ['php']),
              '%(arg2)s'),
     'tut5': (skip(gen('emit_log_topic', arg='%(arg)s.foo %(arg2)s'),
-                  ['erlang', 'php']),
+                  ['php']),
              skip(gen('receive_logs_topic', arg='%(arg)s.*'),
-                  ['erlang', 'php']),
+                  ['php']),
              '%(arg2)s'),
     'tut6': (skip(gen('rpc_client', java='RPCClient', dotnet='RPCClient'),
                   ['erlang', 'php']),