RavenDB-825 Service is installed and run under Local Service account - there is no need to setup performance counters
RavenDB-825 IIS setup - added ability to select web site from drop down. Fixing uninstall process - previously website wasn't deleted from IIS
RavenDB-825 Added ability to select existing application pool from combobox
RavenDB-825 Adding LicensePath to web.config
RavenDB-825 IIS changes:

- on drop down show only app pools that have Integrated mode and .net 4.0
- by default select the option to create a new application pool (IIS >= 7)
- do not set the path to install according to web site path (disabled for now because of possible missing rights to create directories)
RavenDB-825 Setup performance counters when running on IIS
RavenDB-825 Enable windows authentication by default for virtual directory