* Breaking changes note about bound class methods
* Changelog for 2.0.0-beta2, including renaming “Change Log” to “Changelog” (the preferred spelling per Wikipedia)
* Update version to 2.0.0-beta2
* 2.0.0-beta2 generated output
* Fix browser build to incorporate Markdown-It, not Marked
* Update Google Closure Compiler; recompile browser build but with MINIFY=false, because Closure Compiler throws an error on our current code; see https://github.com/google/closure-compiler-js/issues/59
* Bump version to 2.0.0-beta1; do release build, with updated docs and annotated source