Preparing 0.8.4 release

Prepared 0.8.3

Signed-off-by: Mario Heiderich <mario@cure53.de>

Prepared 0.8.2

Changed amount of browsers tested

Added one more line to README.md

Merge pull request cure53#139 from neilj/simplify

Simplify attribute sanitisation.

Preparing 0.7.3 release

Update README.md

Preparing release 0.7.1

see cure53#100

Changed from 0.7 to 0.7.0