Two verification tests added to utils.verify() functions:
    1. Checks if any compartment is not connected.
    2. Check if any current source is floating.

Call `utils.verify()` before calling moose.start(). This makes moose somewhat
more idiot-proof. I suffered from the lack of second tests. [skip ci]

git-svn-id: svn+ssh://svn.code.sf.net/p/moose/code/moose/branches/async13@5387 d1858a74-f715-0410-99c9-c66fe9cce3d6
Fixed conflicts

git-svn-id: svn+ssh://svn.code.sf.net/p/moose/code/moose/branches/async13@5388 d1858a74-f715-0410-99c9-c66fe9cce3d6
Somewhat better formatted messgaes. utils.verify() only emits warnings, it does not stop simulations
Somewhat better formatted messgaes. utils.verify() only emits warnings, it does not stop simulations