Use two spaces to separate command from description in Commands section
Allow having numbers on the Usage line
networking: minor bugfixes in the networking script
networking: add documentation for networking scripts module
networking: add 'address replace' command
power: Add power management script
networking: add dependency to IPy python package
Merge pull request #36 from pschiffe/master

Updated copyright year
Merge pull request #35 from rnovacek/dev

Various fixes mostly in networking scirpt, introduction of power script
networking: Fix typo in command name
Merge pull request #37 from rnovacek/dev

networking: Fix typo in command name
file: be more verbose on error
do not exit lmi meta-command with unsuccessful help

Fixes this behaviour:
$ lmi
> help foo
ERROR: failed to find command "foo"
$

Error is printed but interactive mode is preserved.

Resolves ticket #213
file: let the exception propagate

'Could not get target ...' error description does not say much about the
cause. Let the error propagate upwards.
do not hardcode exit codes

Defined exit codes for lmi meta-command in _metacommand.exit module.
do not exit imode on keyboard interrupt

UP to now, lmi exited interactive mode when Ctrl+C was hit. Also ugly
traceback was printed. Now just debug message is printed.

Resolves ticket #236
print additional line upon EOF in imode

Print another line ending when Ctrl+D is hit (End of File).
Without it user is returned to his shell with unpleasant prefix:

lmi>  ${PS1}$ _
mentioned that help could be used also with command

Resolves ticket #235
handle command import error gracefully

Do not terminate interactive mode when command module fails to import.

Resolves ticket #232, #213
whitespaces be gone