A few fixes for caching, large builds and default arch
Merge pull request #34 from euanh/planexsc

Import specfile-handling class from xenserver-core
Merge pull request #29 from jonludlam/master

A few fixes for caching, large builds and default arch
Restructure - use setuptools

By using setuptools, we no longer need to have links.
A python module created - planex
Fix setup.py
Fix packages
Add tox and fix tests
Add sitepackages to tox
Amend readme
setup: Fix bad merge

Signed-off-by: Euan Harris <euan.harris@citrix.com>