AdminSim-Installer-64bit-1.12 Release Candidate 2

- Made Setup screen more intuitive. Auto save added. Save buttons removed.
- Added a spinner whilst Get IP is happening on Setup screen.
- Fixed new OpenSim version download so it now manages internet offline without errors.
- Made Download screen more intuitive. Auto save added. Save button was removed.
- v1.10 & v1.10 do not update the version number. Fixed v1.12.
- Fixed bug with "Obtain Data" not saving "host" value properly.