#17: Theme basics
#17: Created basics for custom resource handler getting template from database
#17: No temp file, get theme from database with dynamic URL
#17: Default theme definition
#18: Added delete to custom repository so cache evict could be enabled.
Merge branch 'feature/#17-theme' into develop
Merge branch 'develop' into feature/#18-caching-problem-on-delete

Conflicts:
	src/main/java/be/webfactor/sitecubes/repository/ThemeRepository.java
#18: Fixed checkbox styling problem on page layout edit page
Merge branch 'feature/#18-caching-problem-on-delete' into develop