grim/purple-objects-docbook

cleaned up some output and made the targets that depend on specific sheets depend on the specific sheet
<?xml version="1.0" encoding="UTF-8"?>
<hierarchy>
<objects>
<object name="GObject" type="abstract"/>
<object name="PurpleObject" type="abstract"/>
<object name="PurpleCipher" type="abstract"/>
<object name="PurpleDESCipher" type="concrete"/>
<object name="PurpleDES3Cipher" type="concrete"/>
<object name="PurpleRC4Cipher" type="concrete"/>
</objects>
<relations>
<relation start="PurpleObject" end="GObject" type="is-a"/>
<relation start="PurpleCipher" end="PurpleObject" type="is-a"/>
<relation start="PurpleDESCipher" end="PurpleCipher" type="is-a"/>
<relation start="PurpleDES3Cipher" end="PurpleCipher" type="is-a"/>
<relation start="PurpleRC4Cipher" end="PurpleCipher" type="is-a"/>
</relations>
</hierarchy>
<!--
vi: syntax=xml
-->