[network-manager-applet] build: Bump GTK+ requirement to 3.10

[Jeremy Bicha <jbicha src gnome org>]

commit d1b7b6a82a17a2f40dcadfafb1c2ea746d869aae
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Fri Sep 22 15:29:49 2017 -0400

    build: Bump GTK+ requirement to 3.10
    
    followup from
    https://git.gnome.org/browse/network-manager-applet/commit/?id=5babe39

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2017985..bebd853 100644
--- a/configure.ac
+++ b/configure.ac
@@ -128,7 +128,7 @@ if test x"$have_libnotify_07" = "xyes"; then
 fi
 PKG_CHECK_MODULES(NOTIFY, [libnotify >= 0.4.3])
 
-PKG_CHECK_MODULES(GTK, gtk+-3.0 >= 3.4)
+PKG_CHECK_MODULES(GTK, gtk+-3.0 >= 3.10)
 GTK_CFLAGS="$GTK_CFLAGS -DGDK_VERSION_MIN_REQUIRED=GDK_VERSION_3_4 -DGTK_VERSION_MAX_ALLOWED=GTK_VERSION_3_4"
 
 AC_ARG_WITH([appindicator], AS_HELP_STRING([--with-appindicator|--without-appindicator], [Build with 
libappindicator support instead of xembed systray support.]))