[html] using a relative path to the 'action'

Author: Inkimar

FileUploaderRESTService/src/main/webapp/fileuploader.html

@@ -1,5 +1,6 @@
 Choose file to upload<br>
-<form action="http://localhost:8080/FileUploader/rest/upload" method="post" enctype="multipart/form-data">
+<!-- <form action="http://localhost:8080/FileUploader/rest/upload" method="post" enctype="multipart/form-data"> -->
+<form action="rest/upload" method="post" enctype="multipart/form-data">
 	<input name="file" id="filename" type="file" /><br><br>
     <button name="submit" type="submit">Upload</button>
 </form>