How do I set up the TS3SDK with visual studio community ''15?

I've been trying to set up the teamspeak plugin SDK with visual studio community 2015, and all I get are errors, everywhere! I don't see what the problem is, and I get a range of problems such as:

In the plugin.c the line

Code:

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static char* pluginID = NULL;

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throws

Code:

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Severity        Code        Description        Project        File        Line
Error (active)                identifier "NULL" is undefined        test_plugin        c:\Users\Emil\Desktop\Ts3SDK\src\plugin.c        599

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and none of the #includes work for

Code:

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

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I've never really compiled a dll file before and I don't know what is wrong, 58 errors occurred most of which are undefined identifiers.

How do I set up the TS3SDK with visual studio community ''15?