Bugfix: Allow watching links, too

Author: LaCuneta

engine/src/main/coffee/engine/core/link.coffee

@@ -87,6 +87,11 @@ module.exports =
         @id = -1
       return DeathInterrupt
 
+    # () => Unit
+    watchMe: ->
+      @world.observer.watch(this)
+      return
+
     # () => Unit
     stamp: ->
       @_drawStamp(Stamp)

engine/src/main/coffee/engine/core/observer.coffee

@@ -154,7 +154,7 @@ module.exports.Observer = class Observer
     # (Agent) => Unit
     watch: (agent) ->
       @_perspective = Watch
-      @_targetAgent = if checks.isTurtle(agent) or checks.isPatch(agent) then agent else Nobody
+      @_targetAgent = agent
       @_updatePerspective()
       return