webui: Only show local (or raw) options when local (or raw) is selected

Until now, we were always showing local and raw options when local or
raw was selected. They should only appear when the correct option is
selected.
Merge pull request #56 from vuntz/ui-fix

webui: Only show local (or raw) options when local (or raw) is selected
Allow to auto-generate self-signed SSL certificates

The setup is rather simple. Instead of a full-blown CA, a CSR is used to
create the self-signed certificate.
webui: Improve strings for volume type

"raw" and "local" were really suboptimal, and EqualLogic is a bit better
than EQLX.
Merge pull request #59 from saschpe/release/pebbles/master-ssl-gencerts

Allow to auto-generate self-signed SSL certificates
Merge pull request #60 from vuntz/improve-strings

webui: Improve strings for volume type
Fix keyfile being only defined, when using client cert

Use only client cert, when in use
Merge pull request #61 from asdil12/release/pebbles/master

Fix keyfile being only defined, when using client cert