Added verify_ssl_cert and networkid options

verify_ssl_cert can be used to disabled SSL certificate verification, which
is useful in case a self-signed certificate is used on CloudStack server.
networkid can be used to launch the server into a specific network.
Merge pull request #756 from pakdel/0.8.9

Added verify_ssl_cert and networkid options
Revert "Added verify_ssl_cert and networkid options"

This reverts commit 1e83e2c138ef1799be732a8ca587c862b647d01d. Should have been pushed to develop not 0.8.9 branch