diff --git a/v2/ansible/modules/core b/v2/ansible/modules/core
index 256ce9dd4d..e355f7bf12 160000
--- a/v2/ansible/modules/core
+++ b/v2/ansible/modules/core
@@ -1 +1 @@
-Subproject commit 256ce9dd4dfbe2b0dc9eb5031812c8ab76418a22
+Subproject commit e355f7bf12465ed3f25a2147d6940179db2a26aa
diff --git a/v2/ansible/playbook/conditional.py b/v2/ansible/playbook/conditional.py
index 1e20f3ffc6..2d8db78bba 100644
--- a/v2/ansible/playbook/conditional.py
+++ b/v2/ansible/playbook/conditional.py
@@ -53,7 +53,7 @@ class Conditional:
         False if any of them evaluate as such.
         '''
 
-        templar = Templar(loader=self._loader, variables=all_vars)
+        templar = Templar(loader=self._loader, variables=all_vars, fail_on_undefined=False)
         for conditional in self.when:
             if not self._check_conditional(conditional, templar, all_vars):
                 return False
@@ -69,20 +69,15 @@ class Conditional:
         if conditional is None or conditional == '':
             return True
 
-        # FIXME: is this required? there is no indication what it does
-        #conditional = conditional.replace("jinja2_compare ","")
-
+        # FIXME: this should be removable now, leaving it here just in case
         # allow variable names
         #if conditional in all_vars and '-' not in str(all_vars[conditional]):
         #    conditional = all_vars[conditional]
 
         conditional = templar.template(conditional, convert_bare=True)
-        if not isinstance(conditional, basestring):
+        if not isinstance(conditional, basestring) or conditional == "":
             return conditional
 
-        # FIXME: same as above
-        #original = str(conditional).replace("jinja2_compare ","")
-
         # a Jinja2 evaluation that results in something Python can eval!
         presented = "{%% if %s %%} True {%% else %%} False {%% endif %%}" % conditional
         conditional = templar.template(presented)
diff --git a/v2/ansible/playbook/role/__init__.py b/v2/ansible/playbook/role/__init__.py
index ae083e5f92..0bdab79946 100644
--- a/v2/ansible/playbook/role/__init__.py
+++ b/v2/ansible/playbook/role/__init__.py
@@ -46,13 +46,21 @@ __all__ = ['Role', 'ROLE_CACHE', 'hash_params']
 #        in a static method. This is also used in the base class for
 #        strategies (ansible/plugins/strategies/__init__.py)
 def hash_params(params):
-    s = set()
-    for k,v in params.iteritems():
-        if isinstance(v, dict):
-            s.update((k, hash_params(v)))
-        else:
-            s.update((k, v))
-    return frozenset(s)
+    if not isinstance(params, dict):
+        return params
+    else:
+        s = set()
+        for k,v in params.iteritems():
+            if isinstance(v, dict):
+                s.update((k, hash_params(v)))
+            elif isinstance(v, list):
+                things = []
+                for item in v:
+                    things.append(hash_params(item))
+                s.update((k, tuple(things)))
+            else:
+                s.update((k, v))
+        return frozenset(s)
 
 # The role cache is used to prevent re-loading roles, which
 # may already exist. Keys into this cache are the SHA1 hash
diff --git a/v2/ansible/plugins/connections/ssh.py b/v2/ansible/plugins/connections/ssh.py
index ee7db0295b..b8bbc5c46f 100644
--- a/v2/ansible/plugins/connections/ssh.py
+++ b/v2/ansible/plugins/connections/ssh.py
@@ -279,7 +279,7 @@ class Connection(ConnectionBase):
         #    ssh_cmd += ['-6']
         ssh_cmd += [self._host.ipv4_address]
 
-        if not (self._connection_info.sudo or self._connection_info.su) or not sudoable:
+        if not (self._connection_info.sudo or self._connection_info.su):
             prompt = None
             if executable:
                 ssh_cmd.append(executable + ' -c ' + pipes.quote(cmd))
diff --git a/v2/ansible/vars/__init__.py b/v2/ansible/vars/__init__.py
index e3cd64f541..f9e7cba9cd 100644
--- a/v2/ansible/vars/__init__.py
+++ b/v2/ansible/vars/__init__.py
@@ -210,6 +210,9 @@ class VariableManager:
             hostvars = HostVars(vars_manager=self, inventory=self._inventory, loader=loader)
             all_vars['hostvars'] = hostvars
 
+        if self._inventory is not None:
+            all_vars['inventory_dir'] = self._inventory.basedir()
+
         # the 'omit' value alows params to be left out if the variable they are based on is undefined
         all_vars['omit'] = self._omit_token