Reformatted using new codestyle. No changes.
Print version number as stored in jar manifest

No need to have an additional version.properties, use the manifest.
And also print information about key libs (voms java apis, canl, bc).
Provide ability to skip hostname checks

Leverage the skipHostnameChecks option provided by VOMS java api
v. 3.0.5.

voms-proxy-init will skip hostname checks by default for backward
compatibility with the broken VOMS server configuration @ CERN.
Once the configuration is in better shape, we'll change the default
and people will have to use the --skip_hostname_checks flag to avoid the
hostname checks.
Small naming changes