Add a private-requirements.txt for personal changes to how things are installed. Good for installing libs as working dirs.

rakefile

@@ -174,6 +174,9 @@ end
 desc "Install all python prerequisites for the lms and cms"
 task :install_python_prereqs do
     sh('pip install -r requirements.txt')
+    if File.file?("private-requirements.txt")
+        sh('pip install -r private-requirements.txt')
+    end
 end
 
 task :predjango do