Development

I've let the pagination work like in the other SDK-s, I would like to move forward w/ social login and then step back and see if we should implemented pagination also in the way i have imagined. 

@Elder, for the issue you've stated about caching custom data, you've asked me to turn off caching and test it that way. I've done that by clearing the customData identifier from CACHE_REGIONS in the custom data tests, but there is currently no native way to remove caching at all. Do any other SDK's support a 'no-cache' option?
Any reasons for changing the Ruby version?