[darktable] upgrade to 1.4.2

[madko]

commit 9494a4231fb5cd23a077ae9356c08d0a84fc4ac5
Author: Edouard Bourguignon <madko at linuxed.net>
Date:   Fri Apr 25 18:33:28 2014 +0200

    upgrade to 1.4.2

 sources |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/sources b/sources
index 0ecd1ab..dfbbff1 100644
--- a/sources
+++ b/sources
@@ -1 +1,2 @@
 71d97c02123d08eb80ec50108262073c  darktable-1.4.2-nopatents.tar.xz
+fd37e12393ccd8e1cfa955b99dc13715  darktable-generate-nopatents-tarball.sh