Handle a remainder properly.

Some spices need a proper remainder for fetching data from the apis, so we have to
validate them before sending otherwise the apis would be overcalled.
Searching only `bitcoin` should work.
added sort block
Merge pull request #1000 from heytitle/check-for-a-remainder

Handle a remainder properly.
Merge pull request #1018 from killerfish/airlinesfix

Sort block added for airlines (#988)