fixed spec and updated nokogiri and rspec
updated some gems and updated nokogiri dependency so we can use newer versions
update HTTParty dependency
fixed rdoc task initializer
fixed typos
makes it threadsafe
fixes failing specs
Merge pull request #1 from rodrigoddalmeida/master

Threadsafety e pequenas correções das especificações.
fixed dependecies, closed #14
fixed tests
updated nokogiri
changed user id
removed invalid validations
we can use unique payment method
we can use pagador without forma
using IdPagador instead of LoginMoip
updated README
make user phone, user id(RG) and user nickname optional
removed old methods
bump version 1.1.0