More cleanups

 - more markAsRead for fields that are accessed through generated code
 - Removed deprecated JsonPropertyProcessor and moved the @Deprecated annotation to @JsonProperty which now reuses the AndroidJsonPRocessor (assuming that it does the same, as the javaDoc says)
 - Removed @Property JsonObject jsObject as it assumes that the @Property annotation is executed before the @AndroidJson annotation which is no longer the case in 2.7 (@Property has become a real active annotation)