SSH Exec does not follow working directories.

[scottfalkingham]

It appears that ReceiveCommand in the CommandReceiver trait uses the getCommand function only, which does not know about any potential working directory.

Steps to reproduce

Send a task, such as gulp, with the working directory specified to the taskSshExec.

Expected behavior

The resulting command should include the working directory.

Actual behavior

Ther resulting command has no reference to the working directory.