package/ci: ignore all GL-related code in the code coverage report.

Can't run tests for that on Travis...

package/ci/travis.yml

@@ -84,4 +84,5 @@ script:
 - sync
 
 after_success:
-- if [ "$TRAVIS_OS_NAME" == "linux" ]; then coveralls --gcov /usr/bin/gcov-4.7 -E ".*/(Test|magnum/build)/.*" --gcov-options '\-lp'; fi
+# Ignoring all stuff that needs GL context and thus can't be run on Travis
+- if [ "$TRAVIS_OS_NAME" == "linux" ]; then coveralls --gcov /usr/bin/gcov-4.7 -E "(.*/(Test|magnum/build|MagnumExternal|Shaders|Platform)/.*|.*/src/Magnum/(AbstractFramebuffer|AbstractObject|AbstractQuery|AbstractShaderProgram|AbstractTexture|Attribute|Buffer|BufferImage|BufferTexture|Context|CubeMapTexture|CubeMapTextureArray|DebugOutput|DefaultFramebuffer|Framebuffer|Mesh|MeshView|MultisampleTexture|OpenGL|PixelStorage|PrimitiveQuery|RectangleTexture|Renderbuffer|Renderer|SampleQuery|Sampler|Shader|Texture|TextureArray|TimeQuery|TransformFeedback|Implementation/BufferState|Implementation/DebugState|Implementation/driverSpecific|Implementation/FramebufferState|Implementation/maxTextureSize|Implementation/MeshState|Implementation/QueryState|Implementation/RendererState|Implementation/ShaderProgramState|Implementation/ShaderState|Implementation/State|Implementation/TextureState|Implementation/TransformFeedbackState)\\.(cpp|h))" --gcov-options '\-lp'; fi