Remove unneeded libxml2 and gtk deps and change gst binaries url

.travis.yml

@@ -17,7 +17,7 @@ matrix:
         - sudo add-apt-repository 'deb http://apt.llvm.org/precise/ llvm-toolchain-precise-3.9 main' -y
         - sudo apt-get update -q
         - sudo apt-get install clang-3.9 llvm-3.9 llvm-3.9-runtime -y
-        - curl -L https://people.freedesktop.org/~slomo/gstreamer.tar.gz | tar xz
+        - curl -L https://github.com/ferjm/gstreamer-1.14.1-ubuntu-trusty/raw/master/gstreamer.tar.gz | tar xz
         - sed -i "s;prefix=/root/gstreamer;prefix=$PWD/gstreamer;g" $PWD/gstreamer/lib/x86_64-linux-gnu/pkgconfig/*.pc
         - export PKG_CONFIG_PATH=$PWD/gstreamer/lib/x86_64-linux-gnu/pkgconfig
         - export GST_PLUGIN_SYSTEM_PATH=$PWD/gstreamer/lib/x86_64-linux-gnu/gstreamer-1.0
@@ -60,8 +60,6 @@ matrix:
             - libdbus-glib-1-dev
             - libedit-dev
             - libglib2.0-dev
-            - libxml2-dev
-            - libgtk-3-dev
 
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