Merge pull request #19 from nsendetzky/master

Updates to latest Arcavias Core
Merge pull request #20 from nsendetzky/master

Updates to latest Arcavias Core
Merge pull request #21 from nsendetzky/master

Enables installation directly in the document root and replaces meta tags for content type by HTTP header
Merge pull request #22 from nsendetzky/master

Removes caching and allows inline images in content security policy
Merge pull request #23 from nsendetzky/master

Adds required images for a fully working demo
Merge pull request #24 from nsendetzky/master

Improves number format and removes search box in catalog filter
Fixes --extdir parameter for unitperf so extension classes are found