Releasify - Change the setup icon 

An attempt at changing the setup.exe icon similar to how the zip data is changed. This is my first venture into pinvokes. Any pointers? :joy: :facepunch: 
I was having trouble with pType. [MSDN](http://msdn.microsoft.com/en-us/library/windows/desktop/ms648049%28v=vs.85%29.aspx) says to use a string with a '#' character. I'll try that next.