DATAREST-941 - Modify existing browser.html

Instead of replacing the HAL Browser's browser.html, take the existing one and alter it inside the build job. This ensures that future updates don't break so horribly.

Related to mikekelly/hal-browser#89 which will provide an explicit token to match, instead of using the closing `</body>` tag.

spring-data-rest-hal-browser/pom.xml

@@ -108,6 +108,52 @@
 								<copy todir="${project.build.outputDirectory}/META-INF/spring-data-rest/hal-browser/vendor/js">
 									<fileset dir="${project.build.directory}/json-editor/META-INF/resources/webjars/json-editor/${json-editor.version}" />
 								</copy>
+								<copy file="${project.build.outputDirectory}/META-INF/spring-data-rest/hal-browser/browser.html"
+									  tofile="${project.build.outputDirectory}/META-INF/spring-data-rest/hal-browser/index.html" />
+								<replace file="${project.build.outputDirectory}/META-INF/spring-data-rest/hal-browser/index.html">
+									<replacefilter>
+									<replacetoken><![CDATA[</body>]]></replacetoken>
+									<replacevalue><![CDATA[
+	<script id="dynamic-request-template" type="text/template">
+		<div class="modal-header">
+			<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
+			<h3>Create/Update</h3>
+		</div>
+
+		<form class="non-safe" action="<%= href %>">
+			<div class="modal-body" style="padding-top: 0px">
+				<div id="jsoneditor"></div>
+
+				<div class="well well-small" style="padding-bottom: 0px;">
+					<div class="container-fluid">
+						<div class="row-fluid">
+							<div class="control-group">
+								<label class="control-label" style="display: inline-block; font-weight: bold;">Action:</label>
+								<input name="method" type="text" class="method controls" style="width: 98%" value="POST" />
+								<input name="url" type="text" class="url controls" style="width: 98%" value="<%= href %>" />
+							</div>
+						</div>
+					</div>
+				</div>
+			</div>
+			<div class="modal-footer">
+				<button type="submit" class="btn btn-primary">Make Request</button>
+			</div>
+		</form>
+	</script>
+
+	<script src="vendor/js/jsoneditor.js"></script>
+	<script src="js/CustomPostForm.js"></script>
+
+</body>]]></replacevalue>
+									</replacefilter>
+								</replace>
+								<replace file="${project.build.outputDirectory}/META-INF/spring-data-rest/hal-browser/index.html">
+									<replacefilter>
+										<replacetoken>The HAL Browser</replacetoken>
+										<replacevalue>The HAL Browser (for Spring Data REST)</replacevalue>
+									</replacefilter>
+								</replace>
 								<delete file="${project.build.outputDirectory}/META-INF/spring-data-rest/hal-browser/browser.html" />
 							</target>
 						</configuration>