Refactor config into a separate file

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
added custom port configuration

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
added host configuration

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
added use_ssl configuration

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
added ginkgo and gomega

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
switch to using ginkgo

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>