Travis: Don't build tags
diff --git a/.travis.yml b/.travis.yml
index 499aeb9..3fec16e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,10 @@
 language: c
 
+branches:
+  except:
+    - /^[0-9]+\.[0-9]+\.[0-9]+/
+    - /^jpeg-.*/
+
 matrix:
   include:
     - os: linux