Added Gradle 2.0

<?xml version="1.0"?>
<interface xmlns="http://zero-install.sourceforge.net/2004/injector/interface" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://zero-install.sourceforge.net/2004/injector/interface http://0install.de/schema/injector/interface/interface.xsd http://0install.de/schema/desktop-integration/capabilities http://0install.de/schema/desktop-integration/capabilities/capabilities.xsd">
  <name>Gradle</name>
  <summary xml:lang="en">A software project management and comprehension tool</summary>
  <summary xml:lang="de">Ein Softwareprojeketmanagementwerkzeug</summary>
  <homepage>http://www.gradle.org/</homepage>
  <category>Development</category>
  <needs-terminal/>
  <feed-for interface="http://0install.de/feeds/Gradle.xml"/>
  <group langs="en" license="The Apache Software License, Version 2.0">
    <environment mode="append" name="GRADLE_OPTS" value=""/>
    <environment insert="" mode="replace" name="APP_BASE_NAME"/>
    <command name="run">
      <runner command="java" interface="http://repo.roscidus.com/java/openjdk-jdk">
        <arg>$GRADLE_OPTS</arg>
        <arg>-Dorg.gradle.appname=$APP_BASE_NAME</arg>
        <arg>-classpath</arg>
        <arg>org.gradle.launcher.GradleMain</arg>
      </runner>
    </command>
    <implementation id="sha1new=6032161410573f91f79f39166ee8e71808f43f33" released="2014-07-01" stability="stable" version="2.0">
      <manifest-digest sha256new="FJHPZOKFQA7W2FJO52HQMF2EVCYCQGNO32ZPIG77QTDN5JO2WCLQ"/>
      <archive extract="gradle-2.0" href="https://services.gradle.org/distributions/gradle-2.0-bin.zip" size="41468729" type="application/zip"/>
    </implementation>
  </group>
</interface>