Require all used (standard) libs if needed
Add Rudy Rigot in authors

This should have been done since almost the beginning…
Deploy gems using Travis-ci
test: Format very long submit_raw test
tests: Stop loading ‘json’ is ‘yajl’ is present
Be sure to never use JSON.parse

The `parse` method tries to convert structures
into Ruby classes, which we want to avoid.
tests: Fix yajl loading
tests: yajl can be loaded in Ruby 2.1.x too
test: Received documents now have a version
tests: Be sure timestamp fragment’s date are in UTC when tested
Bump to 1.0.0.rc10