Support for multiple publishers

[andrzejkrej]

Typical production environement contains multiple publish instances. Please extend Secure AEM so that it is able to check multiple instances at once. Following items might need to be updated:

• CLI interface - should accept multiple publisher parameters from the command line,
• config dialog in AEM - allow the user to provide from single to many publisher ips,
• test runner - repeat publisher tests for all provided publisher ips,
• reports - both AEM GUI and CLI - print results for all configured publishers.