implemented new storageAdapter
update composer lock
Migrated Denkmal_Model_Venue to schema approach
Merge pull request #12 from mariansollmann/issue-12

Refactor model: Song
Refactor "link" to new model
changed table name and "venueId" => "venue"
implemented new storageAdapter
formatting
Rename venueAlias.venueId -> .venue
Replace getters and setters, add schema
Updated table name, fixed getAddress()
Updated table name in paging
Updated DB structure
Adjusted test
Updated docu
removed timeForward because its empty the cache
readd _getContainingCacheables()
Updated docu for setCoordinates()
Merge pull request #10 from njam/issue-10

Refactor model: Link
Merge branch 'master' of github.com:denkmal/denkmal.org into issue-11