Added nohttp checkstyle; fixes gh-134

spring-cloud-build-tools/src/checkstyle/nohttp-checkstyle.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0"?>
+<!--
+  ~ Copyright 2002-2019 the original author or authors.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      https://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+		"https://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<module name="Checker">
+
+	<!-- Configure checker to use UTF-8 encoding -->
+	<property name="charset" value="UTF-8"/>
+	<!-- Configure checker to run on files with these extensions -->
+	<property name="fileExtensions" value=""/>
+	<!-- For detailed checkstyle configuration, see https://github.com/spring-io/nohttp/tree/master/nohttp-checkstyle -->
+	<module name="io.spring.nohttp.checkstyle.check.NoHttpCheck">
+	</module>
+</module>