Fix issue with escape sequences in properties file

See: https://github.com/spring-projects/sts4/issues/314

headless-services/commons/java-properties/generate-parser.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+set -e
+ANTLR_VERSION=4.5.3
+if [ ! -f antlr-${ANTLR_VERSION}.jar ]; then
+    curl https://www.antlr.org/download/antlr-${ANTLR_VERSION}-complete.jar --output antlr-${ANTLR_VERSION}.jar
+fi
+workdir=$(pwd)
+cd resources
+java -jar ${workdir}/antlr-${ANTLR_VERSION}.jar JavaProperties.g4 -o ${workdir}/src/main/java/org/springframework/ide/vscode/java/properties/antlr/parser -package org.springframework.ide.vscode.java.properties.antlr.parser
+