Merge pull request #755 from dennishendriksen/master

Set label instead of name
deleted old plugins
removed header plugin
added spring forms path to the ui
removed header plugin omx ui + changed path in ngs app for worksheet ngs
Merge pull request #756 from RoanKanninga/master

deleted old plugins
Begin with validaton
Validate unique fields
Merge pull request #759 from erwinwinder/master

Added validation to forms
add catalog/study manager plugins, set menu labels
use @Bean instead of @Service to prevent collisions in LL app
uniform spacing, reduce nav margins
add ids
style changes
style changes
rename class, move to other package
introduce data transfer objects
add data model independent catalog classes
add builder that creates catalog model from catalog (and catalog selection)
move to other package