Merge pull request #201 from briandealwis/master

Thanks a lot!
Remove warnings
remove annoying gittip link
spelling/grammar
fixes #204
Merge pull request #205 from nbros/patch-2

spelling/grammar
fixes #206
typo in
Merge pull request #209 from paulvi/patch-3

typo in
Fix up ColorAndFontCSSGenerator to generate sound CSS and only
as required.