CFY-1184 changed error raised to AttributeError
CFY-1184 removed comments and names from blueprint
CFY-1184 removed hardcoded names and moved to using nightly builds
CFY-1184 changed test to modify blueprint according to properties specified in handler rather then using values from blueprint
CFY-1184 init boto client using credentials from config file
CFY-1184 added libcloud provider to project dependencies, and the appropriate pip installations to system_tests script and requires env vars.