Add models and requests to support cloudstack advanced zone

Fix copyright

Brief unit test of firewall.rb

Abandon firewall unit test

Add list ip range test

[Bug] Fog.mocking? will pending the test!

Fix vlan_test: key should be String

Add test for associate ip address

Rename associate ip address test

Fix file mode

Create vlan range tests

Fix file mode, no windows anymore!

[Fix] no create vlan range method

Remove mess files

Delete mess file, again!

Tests for delete_vlan_ip_range

enbale/disable static nat tests

associate/disassociate ip address tests

Rename list ip range tests