set cookie with search-parameters as JSON-String when search is modified
use cookie for item-detail view navigation in result list
handle correct URL-encoding
mask special characters for lucene-search
show greyed out backlink to search if item was called directly and not
from search
put search query from cookie to search input-field
add css-class to distinguish when to call java-function
document lucene escaping
make lucene replacement pattern as global variable
Merge remote-tracking branch 'origin/DDBNEXT-122' into develop

Conflicts:
	grails-app/controllers/de/ddb/next/ItemController.groovy
	grails-app/views/index/index.gsp
	grails-app/views/search/_thumbnailWrapper.gsp