Merge branch 'master' into develop
Updating custom event signatures to match DOM specification.
Merge pull request #2 from ProdigySim/master

Updating MutableEvent initializers to match DOM spec (and current implementations)
First implementation of WebGL support
Made ContextAttributes serializable and fixed case
Changed back web.csproj, fixed case in webgl context and added documentation
Changed the datatypes to non createable classes
Whitespace
Made two WebGL classes [Serializable]
Merge branch 'webgl' into develop
History updates
Release 2.1.0