Add support for advanced authentication and make it default

Basic authentication doesn't work well with regards to password
change. So, sites sooner or later change to advanced one.

Add support for it and make it default.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add support for reading an author fixup table file

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>