[gnome-continuous] Bump up Meson

[Emmanuele Bassi <ebassi src gnome org>]

commit 0bc20951594092a1a768841b90ccdbf1cdbe0b8b
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Jan 24 00:44:25 2019 +0000

    Bump up Meson
    
    Libnice needs 0.49.1.

 manifest.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/manifest.json b/manifest.json
index e3c0065..a00e357 100644
--- a/manifest.json
+++ b/manifest.json
@@ -67,7 +67,7 @@
 
                 {"src": "git:https://github.com/mesonbuild/meson.git";,
                  "name": "meson",
-                 "tag": "0.49.0",
+                 "tag": "0.49.1",
                  "component": "devel",
                  "patches": ["python-meson-buildsys.patch"]},