Verbose command debugging in the system logs.

[databeestje]

I added debugging to the mwexec command so we can see what is executing and what is failing.

Previously all commands were executed and all output was sent to dev null. This seemed like a more proper approach.

This does make the logs a bit more verbose then previously. Ofcourse the operation has not changed but it's just visible now.

We currently making our rounds silencing and fixing most of them. They wil eventually dissapear.
I have done the same thing for our 1.2.1 tree.