modernizing sbt build and dependencies

build.sbt

@@ -0,0 +1,14 @@
+name := "mechanize"
+organization := "org.smop"
+version := "0.1-SNAPSHOT"
+
+scalaVersion := "2.11.8"
+
+libraryDependencies ++= Seq(
+  "nu.validator.htmlparser" % "htmlparser" % "1.4",
+  "org.apache.httpcomponents" % "httpclient" % "4.5.2",
+  "org.scala-lang.modules" % "scala-xml_2.11" % "1.0.5",
+  "org.specs2" %% "specs2-core" % "3.8.3" % "test"
+)
+
+scalacOptions in Test ++= Seq("-Yrangepos")

src/main/scala/org/smop/mechanize/Mechanize.scala

@@ -3,18 +3,21 @@
   */
 package org.smop.mechanize
 
-import org.apache.http.impl.client.DefaultHttpClient
-import org.apache.http.client.methods.{HttpUriRequest, HttpGet}
+import scala.language.postfixOps
+import org.apache.http.impl.client.HttpClientBuilder
+import org.apache.http.client.methods.{HttpGet, HttpUriRequest}
 import org.apache.http.{HttpEntity, HttpResponse}
 import java.io.InputStream
+
 import xml.Node
 import java.net.URI
+
 import org.xml.sax.InputSource
 
 /** The do-it-all class.
   * @param agent the HTTP User Agent */
 class Mechanize(var agent: String = "org.smop.mechanize/0.1") {
-  protected val _httpclient = new DefaultHttpClient
+  protected val _httpclient =  HttpClientBuilder.create().build()
 
   protected var _request: HttpUriRequest = null
   protected var _uri: URI = null