white space cleanup
fixed dependency to specinfra and serverspec
upgrading to serverspec 2.3 and specinfra 2.4
using 'os' gem to infer local backend + refactoring
refactor: removed os from communicator adapters
renaming spec subject
refactoring session binding to rspec configuration
bumped version to 1.0.0

Major change: now compatible with specinfra 2.4