Fix OPENDJ-269 : Add support for SSL connection between DSML gateway and LDAP server.
There are now several new params in the web.xml file to specify:
- A DN and Password to provide default authentication between the DSML gateway and the LDAP server.
- whether to use SSL (on LDAPS port) or StartTLS (against LDAP port)
- whether TLS server certificate must be blindly trust.
- Or the truststore and password to trust it

All combinations tested with GlassFish 3.1 as the container, OpenDJ 2.5-SNAPSHOT as the LDAP server.