fixed httparty dependency
removed tabs, used ruby 2 space indention
require_relative because the lib is not found without it
testing against live data. there are new votes on the live system :wink:
added vcr to test against recorded data, fixes #3

Now it replays the tests against recorded data instead of live data. That
way the tests stay more stable. E.g. the number of votes changed in the last
few months and the tests failed because of that.
do not simply puts the backdops, test the lenght of the returned array
add the possibility to change the language to german