remove ant from ofbiz

[Hans Bakker]

Hi community,

the version of Ant distributed with ofbiz is pretty old and has some 
disadvantages:
1. does not support the failonerror="true" on te <patch command
2. difficult command line when using apply-ofbiz-patches:
    ../../ant apply-ofbiz-patches
i tested using the ant version 1.8.2 and it seems to work fine.....

why not remove it and use the standard ant install?
could still have the ant command to redirect to the external ant

opinions please?

regards,
Hans