Unit Tests now use common Client function.
Factorized display of LIST result
Added null path unit test
Removed null check on ftpclient as no longer necessary (handled by the uribuilder)
Impl. async method for Ftp LIST method
Unit test for Ftp LIST async method
Merge branch 'feature/list_async' into develop
Marked legacy methods as Obsolete
Merge pull request #1 from thomas-barthelemy/develop

Develop