Merge pull request #346 from wagnert/gh-pages

Move draft post to _drafts folder, add new post for 1.0.0-beta3 release
Update downloads.md
Update downloads.md
Merge pull request #347 from wagnert/gh-pages

Write blog post about Servlet-Engine
Update 2014-12-24-servlet-engine-basics.md
Update 2014-12-24-servlet-engine-basics.md
Add new post about Persistence-Contaier