Add contract.owner field and auto fill it with user's login (#683)
Remove `getContract` url handler
Add constraints to getContracts query #683
Fix 'owner' field type #683
Merge branch 'master' into i683-sort-out-the-owners-from-the-dealers

Conflicts:
	srv/src/AppHandlers/CustomSearches.hs
Merge branch 'master' into i683-sort-out-the-owners-from-the-dealers