moved ssh source files, adapted management to some interfaces

...e/uniwue/swp/dragdropssh/management/ManagementFacade.java

...e/swp/dragdropssh/management/command/AbstractCommand.java

...ropssh/management/command/AbstractTransactionCommand.java

...opssh/management/command/CancelFailedTransferCommand.java

...e/swp/dragdropssh/management/command/DeletionCommand.java

...e/swp/dragdropssh/management/command/DownloadCommand.java

.../dragdropssh/management/command/ListDirectoryCommand.java

.../dragdropssh/management/command/RetryDownloadCommand.java

...wp/dragdropssh/management/command/RetryUploadCommand.java

...e/swp/dragdropssh/management/command/SSHLoginCommand.java

...wue/swp/dragdropssh/management/command/UploadCommand.java

...pssh/management/command/result/AbstractCommandResult.java

...dropssh/management/command/result/EmptyCommandResult.java

...management/command/result/ListDirectoryCommandResult.java

...dropssh/management/command/result/LoginCommandResult.java

...opssh/management/exception/CommandExecutionException.java

...p/dragdropssh/management/exception/DatabaseException.java

...sh/management/exception/DatabaseLoginFailedException.java

.../exception/DatabaseTransactionStoringFailedException.java

...ue/swp/dragdropssh/management/exception/SSHException.java