Make sysinfo into a runner Plugin.

Make sysinfo into a runner Plugin,
rename application from AvocadoRunnerApp to AvocadoApp,
due all options are now implemented as plugins and
Avocado is now a core application.

Signed-off-by: Ruda Moura <rmoura@redhat.com>
Ignore files from git and fix script name in setup.py.

Signed-off-by: Ruda Moura <rmoura@redhat.com>
Merge pull request #2 from ruda/moreplugins

Make sysinfo into a runner Plugin.
Merge pull request #3 from ruda/minor_fixes

Ignore files from git and fix script name in setup.py.