Allows KEY_PAIR and AUTO_GENERATE_KEYPAIRS to be used on CloudStack locations
Use ConfigKeys.newBooleanConfigKey in JcloudsLocationConfig
Correct backwards condition in SshjClientConnection toString
Merge pull request #1122 from sjcorbett/jclouds-location-cloudstack

Allows KEY_PAIR and AUTO_GENERATE_KEYPAIRS config keys to be used in CloudStack locations