Merge pull request janpaepke#847 from umxr/development

Typo in one of the expert examples

corrected version no

built v2.0.5

built version 2.0.3

built v2.0.2

fixed test

Merge pull request janpaepke#249 from janpaepke/development-demo

Released 2.0.0

updated: version in readme.md

also extended replace in gulp build to work for alpha and beta versions

build current version

Update CHANGELOG.md