Add submodules and build scripts

These will be made default in 1.9, dropping PaperTools support

init.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+PS1="$"
+basedir=`pwd`
+workdir=$basedir/work
+minecraftversion=$(cat BuildData/info.json | grep minecraftVersion | cut -d '"' -f 4)
+decompiledir=$workdir/$minecraftversion
+nms=$decompiledir/net/minecraft/server
+cb=src/main/java/net/minecraft/server
+
+patch=$(which patch 2>/dev/null)
+if [ "x$patch" == "x" ]; then
+    patch=$basedir/hctap.exe
+fi
+
+echo "Applying CraftBukkit patches to NMS..."
+cd "$basedir/CraftBukkit"
+git checkout -B patched HEAD >/dev/null 2>&1
+rm -rf $cb
+mkdir -p $cb
+for file in $(ls nms-patches)
+do
+    patchFile="nms-patches/$file"
+    file="$(echo $file | cut -d. -f1).java"
+
+    echo "Patching $file < $patchFile"
+    sed -i 's/\r//' "$nms/$file" > /dev/null
+
+    cp "$nms/$file" "$cb/$file"
+    "$patch" -s -d src/main/java/ "net/minecraft/server/$file" < "$patchFile"
+done
+
+git add src >/dev/null 2>&1
+git commit -m "CraftBukkit $ $(date)" >/dev/null 2>&1
+git checkout -f HEAD^ >/dev/null 2>&1