PATCH: Rename task

[Thomas Haas <th...@softwired-inc.com>]

Dear committers

Some time ago I implemented a rename task. It still has not be applied
with no apparent reason.
Attached please find a patch implementing the task and a patch to
docs/index.html documenting the task.

Can someone please commit the patches or tell me what is missing.

Thank you.
- tom

Test:
rename.xml:
<?xml version="1.0"?>
<project name="RenameTest" default="main" basedir=".">
  <target name="main">
    <rename src="foo1.jar" dest="bar1.jar" />
    <rename src="foo2.jar" dest="bar2.jar" replace="off" />
  </target>
</project>


$ touch foo1.jar foo2.jar bar1.jar bar2.jar
$ ant -buildfile rename.xml
Fails, because bar2.jar already exists.

$ ant -buildfile rename.xml
Fails, because foo1.jar does not exist anymore

$ touch foo1.jar foo2.jar bar1.jar bar2.jar; rm bar2.jar
$ ant -buildfile rename.xml
Succeess.