use before(:all) block to create database record for json tests since we never interact with it anyway.
use before(:all) blocks and shoulda-matchers to speed up user model specs.
remove irrelevant/outdated pending request specs.
make request once for each set of specs and run tests on response.
update google maps vcr cassette so spec works with ruby 2.0.
update vcr cassettes for cucumber features so they work with ruby 2.0, and upgrade capybara-webkit to latest version.
run travis on mri 2.0.0 as well as 1.9.3.
group link api specs together so they run faster.
Merge branch 'feature/92-speed-up-tests' into develop