[Change] moved Twitter::API.new initialization on before :context, increase test speed.
[Change] Added one test for multiple requests in one call.
[Change] Remove useless call to MultiJson.encode
[Change] Move class *Error to specific file
[Change] Refactor validator class
Merge branch 'refactor'
Added travis
Documentation update
[FIX] parser: rack_input is now read correctly
[FIX] parser: rack_input is now read correctly
Merge branch 'master' of github.com:c4mprod/grape-batch into configurator

Conflicts:
	lib/grape/batch.rb
Merge branch 'configurator' of github.com:c4mprod/grape-batch into configurator