Build guide is updated for Windows (msvc++)

[Ravna]

Just figured I'd post it here, so anyone who has been trying it lately and didn't succeed can try again now.

https://svn.code.sf.net/p/planeshift/code/trunk/docs/compiling.html
The build guide has been updated, to include instructions for msvc 2010, 2012, 2013 and 2015. In addition, the code has been updated so that it will actually build on these, and instructions were added to obtain required libraries like Curl and Cal3D.

Besides that, minor additions were made to the Ubuntu guide and a few general changes. Most notably, the supported mysql version was changed from 5.0 to 5.5 (5.0 still works too, but is not available through all package managers anymore, more recent versions will likely work as well).

If anyone still has trouble compiling on msvc, feel free to come find me on IRC.

[Venalan]

So I actually managed to build PlaneShift using the new windows guide on windows 10. First time ever for me! Thanks ravna.

[Jilerel]

Using this guide, works perfectly =D