title: How to add org.apache.commons.lang3 to AndroidStudio with gradle
body: <p>Due to <a href="https://stackoverflow.com/questions/994331/java-how-to-decode-html-character-entities-in-java-like-httputility-htmldecode">this question</a>
  I want to use class <code>StringEscapeUntils</code> in package <code>org.apache.commons.lang3</code>.</p>
  
  <p>But when I try to import <code>Apache</code> lib by add line <code>compile 'org.apache.commons:commons-collections4:4.0'</code> to <code>build.grade</code> file then can not import the class above.</p>
  
  <p>Is there any one can help me how to import above one to my project via gradle (not by download .jar and put them into project folder).</p>