Use full path when referencing files in documentation

Include the packages/ component in paths referenced in the documentation
to make it clear where the files are located in the repository.

[skip travis]

docs/communication.md

@@ -50,9 +50,9 @@ Message
 There's two types of messages currently implemented apart from the
 Link builtin close message and that's Request and Event.  The builtin
 messages are defined in
-[lib/link/messages.js](/package/lib/link/messages.js) and are attached
-to links via the attachAllMessages function, which is usally called in
-the Link subclass constructor.
+[packages/lib/link/messages.js](/packages/lib/link/messages.js) and are
+attached to links via the attachAllMessages function, which is usally
+called in the Link subclass constructor.
 
 The messages define which links they are valid on and only attaches
 handlers for those links.  There's also a forwarding mechanism for when

docs/config-system.md

@@ -13,9 +13,9 @@ the startup, and the groups and their fields for disabled plugins will
 still be created.
 
 The built-in config groups and their fields are defined in
-[lib/config/definitions.js](/packages/lib/config/definitions.js) while
-plugins can add their own config groups to the `MasterConfigGroup` and
-`InstanceConfigGroup` properties of the `info.js` export using
+[packages/lib/config/definitions.js](/packages/lib/config/definitions.js)
+while plugins can add their own config groups to the `MasterConfigGroup`
+and `InstanceConfigGroup` properties of the `info.js` export using
 subclasses of `PluginConfigGroup`.  The plugin group has the enabled
 field pre-defined on it, and it's used to enable/disable plugins.
 

docs/socket.md

@@ -230,8 +230,8 @@ there's [Requests](#requests).  By convention message types ending in
 `*_event` are events.  The data payload of an event consists solely of
 event specific properties.
 
-See [lib/link/messages.js](/packages/lib/link/messages.js) for the
-recognized events and their contents.
+See [packages/lib/link/messages.js](/packages/lib/link/messages.js) for
+the recognized events and their contents.
 
 
 Requests
@@ -245,8 +245,8 @@ replied to with a corresponding `*_response` message.  If an error
 occured while processing the request an error response containing an
 error property in the data payload is sent instead.
 
-See [lib/link/messages.js](/packages/lib/link/messages.js) for the
-recognized requests and their contents.
+See [packages/lib/link/messages.js](/packages/lib/link/messages.js) for
+the recognized requests and their contents.
 
 ### `*_response`