support setting environment tiers by name, update the default solution stack, update docs around delete
add validation to tier selection, refactor code around tier specification, update documentation
support for a S3 object location as package to deploy
bump up version
refatoring: rename environment to eb_environment, we will use term
"environment" for a more higher level concept
refactoring towards Application->Environment->EbEnvironment model structure
clean up: put all aws drivers into a separate module
minor clean up
travis configuration
add rake to make travis build happy
add travis gadget
remove 1.8.7 build
reduce to 4 ruby version for build
v0.3.7
skip redcarpet on jruby
Change eb environment name pattern. Stop using application name hash to make eb environment global unique, because ElasticBeanstalk do not require it any more. Also add migration logic so that if a environment with legcy name exists, eb_deployer will automaticly terminate it and replace it with environment has new name pattern.
bump up version
add changelog