REL-1983: Verify that the Windows and MacOS installer use the correct naming convention

This PR unifies the installed versions of Windows and MacOS to have the same name convention:

Gemini OT <version>
Gemini PIT <version>
Gemini QPT <version>

It also updates the icon and sets the frame title to use the same name.
The installer have been tested quite a bit, checking the ability to install, uninstall (using several types of accounts) and install in parallel multiple versions. The tests have been done in OSX 10.9.5 and Windows 7

![screenshot 2014-10-20 10 19 47](https://cloud.githubusercontent.com/assets/3615303/4701712/ec86bcea-585b-11e4-8953-ac6046fea71c.png)

![screenshot 2014-10-20 10 26 55](https://cloud.githubusercontent.com/assets/3615303/4701770/c98d3088-585c-11e4-9ecc-a265b92d3384.png)

The one think I didn't change was the frame title on the OT. It is right now "Science Program Editor - Science Program" and to be fully standard it likely be called "Gemini OT 2015A.x.y.z - Science Program". Any opinions about that change?