Merge pull request #19 from nikgraf/master

Improved History Support
M4 updates
Added support for http methods when mounting routes.

added support for http method matching when selecting route

BUG=

Review URL: https://chromiumcodereview.appspot.com//14267030
Increment version and update examples in README.md
Fix bug that duplicated '#'s in the click-handler.
Add slightly better error message when a matching URL handler isn't found.
Increment version
route after starting to listen to fix the popstate behavior on page load for different browsers
Merge branch 'history'