Pulling all pending Bukkit-JavaDoc changes

A special thanks goes to @aerouk for almost all of the changes found here.

By: Wesley Wolfe <weswolf@aol.com>

paper-api/src/main/java/org/bukkit/material/Stairs.java

@@ -115,7 +115,8 @@ public class Stairs extends MaterialData implements Directional {
     /**
      * Set step inverted state
      *
-     * @param inv - true if step is inverted (top half), false if step is normal (bottom half)
+     * @param inv - true if step is inverted (top half), false if step is
+     *     normal (bottom half)
      */
     public void setInverted(boolean inv) {
         int dat = getData() & 0x3;