Add java htmlparser sources that match the original 52-level state

https://hg.mozilla.org/projects/htmlparser/
Commit: abe62ab2a9b69ccb3b5d8a231ec1ae11154c571d

parser/html/java/htmlparser/mozilla-export-scripts/util.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env sh
+
+abs() {
+    local rel
+    local p
+    if [ $# -ne 1 ]
+    then
+        rel=.
+    else
+        rel=$1
+    fi
+    if [ -d $rel ]
+    then
+        pushd $rel > /dev/null
+        p=`pwd`
+        popd > /dev/null
+    else
+        pushd `dirname $rel` > /dev/null
+        p=`pwd`/`basename $rel`
+        popd > /dev/null
+    fi
+    echo $p
+}