bump version to 2.1.0.rc.0
added prerelease flags to config template
version bump
add provider structure
set @is_rc in the load_config method
add vagrant; tidy up
remove verbose output on gem commands; remove '--local' flag for gem install to all dependencies
installed provider pattern; refactored AWS provider code out of the test lab class
drive the provider class directly off the config for now
removed obsolete constants; drive the provider class directly off the config for now
raise exceptions for public_ip and private_ip methods if there are no running labs
template vagrant provider
fix bad copy-n-paste
fix typo
pass class params
add logger
require vagrant
add vagrant provider keys
set the port if it's supplied; display port in log statements
don't throw this exception