Merge pull request #230 from emavro/feature-appstore-server

Mime-type fixed
Merge pull request #231 from emavro/feature-appstore-server

Buttons to external links changed to <a> tags
Merge pull request #232 from emavro/feature-appstore-server

Improving JSON response time with JResponse::allowCache(true)
Style changes to improve responsiveness
Merge pull request #233 from KISS-Web-Design/feature-appstore-server

Style changes to improve responsiveness
Fixing strict standards complaint and list view