fixed some typo's. LUA_LIBRARY now points to the right name, regardless of the host machine. Running cmake after a bad attempt (ie forgot to add paths to PATH) now works rather than having to clean the cache

#include <stdio.h>
#include "openalbridge.h"

int main (int argc, int **argv) {

    openal_init();

    openal_close();

    return 0;
}