avocado: Add NullHandler for early 'avocado.test' logger

So we avoid those annoying 'no handlers found for avocado.test'
during test.

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
Merge pull request #191 from lmr/fix-logging-handlers

avocado: Add NullHandler for early 'avocado.test' logger
Makefile: add "man" target for generating the man page

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Merge pull request #192 from clebergnu/make_man

Makefile: add "man" target for generating the man page
avocado.plugins.vm: Update code to latest job state

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
Merge pull request #193 from lmr/fix-vm-plugin

avocado.plugins.vm: Update code to latest job state
Merge pull request #190 from adereis/master

README.rst: general misc improvements
plugins.{json,xunit}: Add missing space in --help

Trivial fix: missing space in a help sentence.

Signed-off-by: Ademar de Souza Reis Jr <areis@redhat.com>