listings through elasticsearch - first step
Merge branch 'test' into pagination

Conflicts:
	pom.xml
Merge branch 'test' into pagination
changes listings to new regal-api interface
/resources extended
new param type (lists all if not used)
new param from (use from and until to page through listing) defaults to 0
new param until defaults to 10
new param namespace (lists all if not used)
new param getListingFrom defines the component to create listings from
    default is "es", "repo" is also supported
removeFromIndex uses Search.class in regal-archive
index, removeFromIndex and html listing for search results
- installer modified