Hanami contributors

All PragTob commits

Simplify travis (jruby-head runs 2.2 compatible by default)utils
Simplify travis yml (jruby-head is 2.2 by default)validations
Simplify .travis.yml as jruby-head is in 2.2 mode by defaultcontroller
Simplify .travis.yml, only jruby-head and include rbx-2router
Add jruby-head and rbx-2 to .travis.ymlhelpers
Add jruby-head to the .travis.ymlhanami
Make lotus install on jruby and the tests at least starthanami