Added logger_endpoint to /v2/info response

[#61092308]

Signed-off-by: Glenn Oppegard <goppegard@pivotallabs.com>
Removed endpoint_exists parameter from shared examples

[#61092308]

Signed-off-by: Dakota Bailey <dbailey@pivotallabs.com>
Merge pull request #127 from cloudfoundry/logger-endpoint

Added logger_endpoint to /v2/info response