Winsupport

[harshad-deo]

Adds support for building on windows using cmake and msbuild.

The only important difference is that it uses System.getProperties(...) to determine the operating system and architecture instead of uname. The other diffs are (mostly) due to the client project of the plugin being built with sbt 0.13.

[jodersky]

Thanks for taking the time to work on this and contributing your changes back. Unfortunately I cannot merge this in its current state for a couple of reasons:

• Using system properties to determine the OS works well, it is however generally not sufficient to determine the architecture type (see discussion here Add support for Windows #20). I would suggest the following compromise: use the properties to determine the OS, and in case it is windows use the properties to determine the architecture as well (I assume windows currently only really works on x86), if not use uname.
• Please keep the ch.jodersky org and maven repo