remove not source files from git
update .gitignore
Merge branch 'master' into gh-pages

* master:
  update .gitignore
  remove not source files from git
Revert "update .gitignore"

This reverts commit e2b69cae474decbf7884198bff04f93559de411c.
keep compiled files in gh-pages
remove note about edge version from docs
Merge branch 'master' into gh-pages

* master:
  remove note about edge version from docs
build