[shotwell] Disable asserts in color processing

[Jens Georg <jensgeorg src gnome org>]

commit b28e4aec37478dcd48ce6c1768039ffe9dcee0f8
Author: Jens Georg <mail jensge org>
Date:   Wed Mar 15 21:24:44 2017 +0100

    Disable asserts in color processing
    
    Signed-off-by: Jens Georg <mail jensge org>

 pipeline.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/pipeline.am b/pipeline.am
index 559cecf..4774162 100644
--- a/pipeline.am
+++ b/pipeline.am
@@ -10,6 +10,7 @@ src_libgraphics_processor_la_SOURCES = \
 
 src_libgraphics_processor_la_VALAFLAGS = \
        $(COMMON_VALAFLAGS) \
+       --disable-assert \
        --pkg gio-2.0 \
        --pkg gdk-3.0 \
        --pkg gee-0.8 \