Add microdata plugin.
Add class attribute to itemscope and itempropblock
Fix flake8 errors.
Remove test_base. It is the same as nikola base.py
Put back test_base test
update the nikola min version and use GPL license.
Change the path.
Add init file.
Fix the import.
Fix the test_rst_compiler import.
Add message.
Add microdata path.
Fix the image node.
remove unittest import (via flake8)

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
add debug=True to microdata rest testing

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
[temporary] test nikola master instead of v6.2.1

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>