Update all the things for release 11

Bump version number for export

Fix issues with weights

Add extra punctuation (bullets, centered period, paragraph symbol & g…

…uillemets) and extra spaces (emspace, enspace, fourperemspace, sixperemspace, threeperemspace & narrownbspace)

Some kerning improvements

Merge branch 'master' of github.com:chrismsimpson/Metropolis

Update README.md

Merge from master

Add lots of latin marks and symbols/currency glyphs

Merge from remote