adds git-lfs

Dockerfile

@@ -24,6 +24,14 @@ RUN apt-get update && apt-get install -y byacc bison diffutils flex make
 # grab some convenience packages for using it as a build "machine"
 RUN apt-get install -y vim less tree screen unzip cvs subversion gdb valgrind
 
+# add git-lfs
+RUN apt-get install -y software-properties-common
+RUN add-apt-repository ppa:git-core/ppa
+RUN apt-get update
+RUN curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.deb.sh | bash
+RUN apt-get install -y git-lfs
+
+
 # this is our install dir for everything non-core
 RUN mkdir -p ${OPT}