[pitivi] Added Czech language

[Marek Černocký <mcernocky src gnome org>]

commit 25a1540adb034d209bcf7ef74b81762fa703dc3b
Author: Marek Černocký <marek manet cz>
Date:   Sun Jul 21 22:21:47 2013 +0200

    Added Czech language

 help/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/Makefile.am b/help/Makefile.am
index b6f89c0..54ccd9a 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -56,7 +56,7 @@ DOC_PAGES = \
     usingclips.page \
     welcomedialog.page
 
-DOC_LINGUAS = de es fr sl uk
+DOC_LINGUAS = cs de es fr sl uk
 
 html:
        mkdir -p html