Add ONC 'Source' configuration property

components/onc/docs/onc_spec.html

Index: components/onc/docs/onc_spec.html
diff --git a/components/onc/docs/onc_spec.html b/components/onc/docs/onc_spec.html
index ac2e50045fb1d11a152cd36cca614a46a36ed699..bb525d17da3b51bb7cb6480c9fd0ade33fb17aa0 100644
--- a/components/onc/docs/onc_spec.html
+++ b/components/onc/docs/onc_spec.html
@@ -431,6 +431,26 @@
       networks. The format is 00:11:22:AA:BB:CC.
     </dd>
 
+    <dt class="field">Source</dt>
+    <dd>
+      <span class="field_meta">
+        (optional, read-only)
+        <span class="type">string</span>
+      </span>
+      Indicates whether the network was configured for the user or the device

[pneubeck (no reviews), 2014/09/10 10:49:38]

'was' -> 'is' ?

'configured _for_ the user' seems not right, the user policy also configures the
network _for_ the user.
How about:

"Indicates whether the network was configured by a policy (UserPolicy or
DevicePolicy) or by a user (User or Device).
If the user shared the configuration with all users of this device (device like
PC or Laptop), Source will be set to 'Device'.
If this network is a visible (e.g. a visible WiFi network) but not configured,
Source is set to 'None'.
"

I guess you don't want to over-specify, but we should at least give a hint of
the effect of this value, like 'who can modify', 'who can see or connect the
config'...

[stevenjb, 2014/09/10 17:32:15]

I tried presenting this as a list of allowed values and what they mean, lmkwyt.

+      and whether or not it was configured by a policy. If 'None' then this

[pneubeck (no reviews), 2014/09/10 10:49:38]

'was' -> 'is' ?

[pneubeck (no reviews), 2014/09/10 10:49:38]

nit: 'None' -> <span class="value">None</span>

[stevenjb, 2014/09/10 17:32:15]

Acknowledged.

[stevenjb, 2014/09/10 17:32:16]

Acknowledged.

+      represents a visible but unconfigured network.
+      <span class="rule">
+        <span class="rule_id"></span>
+        Allowed values are:
+        <span class="value">User</span>,
+        <span class="value">Device</span>,
+        <span class="value">UserPolicy</span>,
+        <span class="value">DevicePolicy</span>,
+        <span class="value">None</span>
+      </span>
+    </dd>
+
     <dt class="field">Priority</dt>
     <dd>
       <span class="field_meta">