Added make packages target to build egg and wheel.

Makefile

@@ -11,3 +11,6 @@ test:
 
 doc:
 	bin/doc.sh
+
+packages:
+	bin/packages.sh

bin/env.sh

@@ -17,8 +17,4 @@ if [ ! -f "$BASEDIR/env/updated" -o $BASEDIR/setup.py -nt $BASEDIR/env/updated ]
     echo "Requirements installed."
 fi
 
-pip install tox
-echo "Tox installed."
-
-pip install Sphinx
-echo "Sphinx installed."
+pip install -r $BASEDIR/requirements.txt

bin/packages.sh

@@ -0,0 +1,8 @@
+#!/bin/bash -e
+
+echo "Building wheel..."
+python setup.py bdist_wheel
+
+echo "Building egg..."
+python setup.py sdist
+

requirements.txt

@@ -0,0 +1,3 @@
+sphinx
+tox
+wheel