(accidentally dropped the packages in project $ROOT)

* added mutt client for #132. Currently, `make install` ignores errors,
  since it tries to install to /usr/local/share/man/man5 which is owned
  by root.

* added google protobuf (needed by mosh client)

* added mosh for #63. Although it is provided natively via
  https://chrome.google.com/webstore/detail/mosh/ooiklbnjmhbcgemelgfhaeaocllobloj

* added boost v1.59.0 needed by MySQL (yet to be built)

* added apache httpd for #615. Currently, `make install` ignores errors,
  since it tries to install to /usr/local/share/man/man8 which is owned by
  root.

packages/protobuf.rb

@@ -0,0 +1,21 @@
+require 'package'
+
+class Protobuf < Package
+  version '3.3.0'
+  source_url 'https://github.com/google/protobuf/archive/v3.3.0.tar.gz'
+  source_sha1 '34bcb26fe1eff098224c93b9176fb2400f1f2a84'
+
+  depends_on 'automake'
+  depends_on 'libtool'
+
+  def self.build
+    system './autogen.sh'
+    system './configure --prefix=/usr/local'
+    system 'make'
+    system 'make check'
+  end
+
+  def self.install
+    system 'make install'
+  end
+end