Fix Ubuntu 16 test VM, rename directory

Also remove the FreeBSD VM definition, as it basically does not work in
VirtualBox and Vagrant, for whatever reason.

vagrant/ubuntu16/fabfile.py

@@ -0,0 +1,56 @@
+# -*- coding: utf-8 -*-
+# -------------------------------------------------------------------
+#
+# Copyright (c) 2016-2017 Nathan Fiedler
+#
+# This file is provided to you under the Apache License,
+# Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+# -------------------------------------------------------------------
+"""Fabric file for installing requirements on Ubuntu Linux."""
+
+import os
+
+from fabric.api import cd, env, run, sudo, task
+
+env.hosts = ["default"]
+env.use_ssh_config = True
+if os.path.exists("user_ssh_config"):
+    env.ssh_config_path = "user_ssh_config"
+else:
+    env.ssh_config_path = "ssh_config"
+
+
+@task
+def all():
+    """Install everything needed to build magick-rust."""
+    sudo('apt-get -q -y install git')
+    sudo('apt-get -q -y install pkg-config')
+    # need the latest possible release of rust for bindgen to work
+    run('wget -O rustup-init https://sh.rustup.rs')
+    run('chmod +x rustup-init')
+    run('./rustup-init -y')
+    run('rm -f rustup-init')
+    sudo('apt-get -q -y build-dep imagemagick')
+    run('wget -q https://www.imagemagick.org/download/ImageMagick-6.9.8-10.tar.gz')
+    run('tar zxf ImageMagick-6.9.8-10.tar.gz')
+    with cd('ImageMagick-*'):
+        run('./configure')
+        run('make')
+        sudo('make install')
+    run('rm -rf ImageMagick*')
+    sudo('apt-get -q -y install clang libclang-dev')
+    # set LIBCLANG_PATH so rustc can find libclang.so in its hidden place
+    # (using the append operation results in 'Unmatched ".' error)
+    run("echo 'export LIBCLANG_PATH=/usr/lib/llvm-3.8/lib' >> .bashrc")