Merge pull request #9 from jmcriffey/master

Bugfix z-index
Merge pull request #10 from jmcriffey/master

Bugfix docs
Merge pull request #11 from jmcriffey/master

Add csrf tokens
Merge pull request #13 from jmcriffey/master

Tests for csrf tokens
Merge pull request #14 from jmcriffey/master

Better mask handling
Merge pull request #15 from jmcriffey/master

Update css
Merge pull request #16 from jmcriffey/master

Added mask click close