Merge pull request #87 from Label305/dev

Dev
increased css version
Set dutch on homepage
updated sitemap
Updated sitemap modification
remove darker line with scrolling
Update index.html
Update index.html
Update index.html
Update index.html
Update default.html
Insterted images
Merge branch 'master' into feature_blogpost-gamification
Fixed some errors and added links
Merge branch 'feature_blogpost-gamification' of github.com:Label305/Label305.com into feature_blogpost-gamification
Merge pull request #88 from Label305/feature_blogpost-gamification

Insterted images
Update sitemap.xml
Update index.html
Update index.html
Update index.html