[gtkmm] Application: Fix constuctor->constructor typo in docs.

[Murray Cumming <murrayc src gnome org>]

commit 3406609195e85f3ddd8fea81805fc61ba4304c8b
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Mar 4 21:56:31 2015 +0100

    Application: Fix constuctor->constructor typo in docs.

 gtk/src/application.hg |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/src/application.hg b/gtk/src/application.hg
index 6d219c2..2230e07 100644
--- a/gtk/src/application.hg
+++ b/gtk/src/application.hg
@@ -138,7 +138,7 @@ protected:
    * This initializes gtkmm (and the GObject type system) for you, parsing the
    * standard GTK+ command line arguments.
    *
-   * You could instead use the constuctor that takes no command line arguements
+   * You could instead use the constructor that takes no command line arguements
    * and later supply the command line arguments to run().
    *
    * Note that all GTK+ functionality that is available via command line arguments
@@ -186,7 +186,7 @@ public:
    * This initializes gtkmm (and the GObject type system) for you, parsing the
    * standard GTK+ command line arguments.
    *
-   * You could instead use the constuctor that takes no command line arguements
+   * You could instead use the constructor that takes no command line arguements
    * and later supply the command line arguments to run().
    *
    * Note that all GTK+ functionality that is available via command line arguments