Major Description
When ivy log a warning or an error from ant (expl: unresolved dependencies messages), it should use the correct ant log level.
Now, all the messages are always logged at info level.
This is particularly anoying when the build is executed with and XMLLogger, and when this log are processed by an XSLT to extract Warning or error message. For example, with a standard configuration of cruise control, we will never see the unresolved dendencies messages.
Having the messages at the right level would solve that.