Change PC to Win or Windows

[Joel Teichroeb]

In trunk of the svn there is a folder called PCbuild. Now lets say that 
I am running linux on my Personal Computer and want to build python. I 
go into the PCbuild directory, but wait. This is for windows not for any 
personal computer. 

Calling Windows PC seems to be something that Apple did so they would 
not have to directly mention Windows. Could all the places that say PC 
that are not referring to Personal Computers in general be changed to 
Win or Windows.