use packaged "opencv" from OS

previously, opencv-2.4.9 was downloaded and compiled from source. now use the precompiled, package version from the OS. this comes in:

Debian Testing (Jessie): 2.4.9
Debian Stable (Wheezy): 2.3.1  # quite old. but is Wheezy still supported? boostrap.sh fails unmodified
Ubuntu 14.04 (Trusty): 2.4.8
Ubuntu 12.04 (Precise): 2.3.1  # not supported anymore?

there are more OS in the osdeps-file, where I just assume they bring similar packaged versions.

tested "image_processing/{frame_helper,stereo} in Jessie and Trusty. but obviously that shouldn't be it. which packages else?

Signed-off-by: Martin Zenzes <[email protected]>

rock.osdeps

@@ -121,15 +121,7 @@ qt-designer:
     macos-brew: qt4
 
 opencv:
-    debian:
-        'wheezy,sid':
-                - libopencv-dev
-    ubuntu:
-        '10.04,10.10,11.04,11.10': nonexistent
-        default:
-                - libopencv-dev
-                - libcv-dev
-                - libhighgui-dev
+    debian, ubuntu: libopencv-dev
     gentoo: media-libs/opencv
     fedora: opencv-devel
     arch,manjarolinux: opencv
@@ -144,3 +136,6 @@ jpeg:
 
 bundler: gem
 cucumber: gem
+
+clang-3.5:
+    debian: clang-3.5 libclang-3.5-dev

source.yml

@@ -83,10 +83,6 @@ version_control:
       type: archive
       url: https://github.com/SINTEF-Geometry/SISL/archive/SISL-4.6.0.tar.gz
       update_cached_file: false
-    - external/opencv:
-      type: archive
-      url: http://downloads.sourceforge.net/project/opencvlibrary/opencv-unix/2.4.9/opencv-2.4.9.zip
-      update_cached_file: false
 
 overrides:
     - ^(orogen|typelib|rtt|utilrb|utilmm|rtt_typelib|tools/metaruby)$: