Add gemfile for travis-ci
Add gemfile for travis-ci

default gemfile, this has gemfile.lock:
- Gemfile

gemfile generated by appraisal, this does not have gemfile.lock:
- gemfiles/rails3_2.gemfile
- gemfiles/rails4_0.gemfile

eitoball/exception_notification,powershop/exception_notification,powershop/exception_notification,toshimaru/exception_notification,smartinez87/exception_notification,wireframe/exception_notification,eitoball/exception_notification,toshimaru/exception_notification,DennisSchmidt/exception_notification,wireframe/exception_notification,sparkgene/exception_notification,Aschen/exception_notification,sparkgene/exception_notification,sparkgene/exception_notification,DennisSchmidt/exception_notification,lingceng/exception_notification,Axxiss/exception_notification,smartinez87/exception_notification,lingceng/exception_notification,trevorturk/exception_notification,trevorturk/exception_notification,powershop/exception_notification,Axxiss/exception_notification,DennisSchmidt/exception_notification,Aschen/exception_notification,Axxiss/exception_notification,wireframe/exception_notification,lingceng/exception_notification,trevorturk/exception_notification,Aschen/exception_notification