"Save as" option when building WebPlayers on Windows.

The save as feature on Mac when building a WebPlayer provides the user with an option to name the WebPlayer build files what they chose, but on Windows this is not the case, a user can only chose the folder destination and the WebPlayer build files are named by default.

This is a frustrating usability problem as many have to rename the files manually after building is complete.

To test:

1. Launch any project in Unity 3.5.5 latest release
2. Build settings -> Click Build
3. Observe on Windows you have an option to chose a location for your build but no option to save as with a file name of your choice.

Desired outcome: Repeat steps on Mac to see the desired behaviour.