[geary] Fix build on systems with vala <= 0.30.0

[Michael Gratton <mjog src gnome org>]

commit ba4863e45a3f054503d5a7bb4245a8cd7dcbc676
Author: Michael James Gratton <mike vee net>
Date:   Thu Feb 2 00:47:01 2017 +1100

    Fix build on systems with vala <= 0.30.0
    
    * src/client/application/geary-application.vala: Replace use of Version
      attr with Deprecated.

 src/client/application/geary-application.vala |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/client/application/geary-application.vala b/src/client/application/geary-application.vala
index ebba8a5..324cebf 100644
--- a/src/client/application/geary-application.vala
+++ b/src/client/application/geary-application.vala
@@ -62,7 +62,7 @@ public class GearyApplication : Gtk.Application {
     private const int64 FORCE_SHUTDOWN_USEC = 5 * USEC_PER_SEC;
 
 
-    [Version(deprecated = true)]
+    [Deprecated]
     public static GearyApplication instance {
         get { return _instance; }
         private set {
@@ -343,7 +343,7 @@ public class GearyApplication : Gtk.Application {
      *
      * @deprecated Use {@link GioUtil.create_builder} instead.
      */
-    [Version (deprecated = true)]
+    [Deprecated]
     public Gtk.Builder create_builder(string name) {
         return GioUtil.create_builder(name);
     }
@@ -353,7 +353,7 @@ public class GearyApplication : Gtk.Application {
      *
      * @deprecated Use {@link GioUtil.read_resource} instead.
      */
-    [Version (deprecated = true)]
+    [Deprecated]
     public string read_resource(string name) throws Error {
         return GioUtil.read_resource(name);
     }
@@ -361,7 +361,7 @@ public class GearyApplication : Gtk.Application {
     /**
      * Loads a UI GResource into the UI manager.
      */
-    [Version (deprecated = true)]
+    [Deprecated]
     public void load_ui_resource(string name) {
         try {
             this.ui_manager.add_ui_from_resource("/org/gnome/Geary/" + name);