Remove parameter user_system that doesn't exist from readme
add ability to configure proxies in settings.xml
Update documentation on how to use the proxy feature.
Use @ to avoid puppet deprecation warnings
Update gems
Bump version
Merge branch 'master' of https://github.com/dcrissman/puppet-maven into dcrissman-master

Conflicts:
	templates/settings.xml.erb
Refactor specs to use let and avoid duplication
Add specs for settings proxies parameter
Bump version