I'm facing some issues when attempting to install a custom tool into galaxy. Here's my current setup:

• Created directory MyTool under tools/
• Created mytool.xml and tool_dependency.xml under tools/MyTool

The contents of the files are written below (I've simplified them slightly to make them shorter and easier to understand):

<tool id="mytool" name="My Tool">
  <description> A tool </description>
  <requirements>
    <requirement type="package" version="1.2">theTool</requirement>
  </requirements>
  <command>
    tool_executable $input
  </command>
  <inputs>
    <param format="fasta" name="input" type="data" label="Source file"/>
  <inputs>
</tool>

<?xml version="1.0"?>
<tool_dependency>
  <package name="theTool" version="1.2">
    <install version="1.0">
      <actions>
        <action type="download_by_url">http://location-of-tool.tar.gz</action>
        <action type="move_directory_files">
          <source_directory> . </source_directory>
          <destination_directory> $INSALL_DIR <destination_directory>
        </action>
      </actions>
    </install>
  </package>
</tool_dependency>

​My question now is, how do I get Galaxy to actually run the tool_dependency.xml file and download the tool? I can definitely get it to run the mytool.xml file, but can't seem to get it to download the tool using tool_dependency.xml. Am I missing something? I read the documentation many times but couldn't figure it out. Any help would be appreciated.