This adds support for validation of ssl certs returned by remote
servers over SSL. The --ca-file param represents the CA cert used
to sign the remote server's cert. Use --insecure if the remote
server is using a self-signed cert or you don't have the CA cert.
Related to bp glance-client-parity
Change-Id: I45253a6e2d88da599addfcc464571e62ae920166
Using the --debug flag or the GLANCECLIENT_DEBUG env var, a user will
see http requests and responses in great detail. Requests are formed
into proper curl commands while responses are printed just as they would
as if the curl request provided were executed. Response bodies will not
be printed if they are application/octet-stream.
Change-Id: I9c9c5d6ec9f481091c944e596d073da3739795b6
Brian Waldon