extracted methods to extract local/global options
added gem version badge to readme
changed deprecated bundler source to use https
test against ruby 2.0
tell rake to include full stacktraces
updated the readme example [ci skip]
really starting to prefer ' over " [ci skip]
i suck at examples [ci skip]
removed #subject w/o block to fix specs
commenting stuff out does not mean removing it
pin puma cause it lacks newer versions for jruby
added some additional information to the readme

[ci skip]
updated the changelog [ci skip]
added a basic contribution guide
added builder#pretty
added operation#build

accepts the same local options and/or an optional block
as operation#call, but returns the builder. allows to
inspect the request xml without sending an actual request.
lower timeouts in specs to improve test speed
removed user-specific rspec config
added fuubar for local usage
Revert "added fuubar for local usage"

This reverts commit 9005439d19a490b1d1b84502bc924b8214cf4156.