Revision 1407913

MNG-5374: Fix transfer listener after the JSR330 merge

For the following cases I have done the following:

1) Logging to the console: I simply restored the class that was there such that when logging to the console it uses System.out as it did and the d
ownload progress appears as it did.

2) Logging in batch mode: the batch mode transfer listener uses an SLF4J logger and the batch mode transfer listener doesn't report download progr
ess so there is no issue. Download progress would just create a bunch of noise. The size and the speed at which it is downloaded are logged.

3) Logging to a file: same as 2) except it's all diverted to the specified file.

4) I created two protected methods in MavenCli so that integrators can supply their own console and batch transfer listeners if they wish.