SQOOP-899: Properly document REST endpoints in the server handler classes

(Jarcec Cecho via Cheolsoo Park)
SQOOP-900: Introduce human readable coding style for queries stored in DerbySchemaQuery

(Jarcec Cecho via Cheolsoo Park)
SQOOP-877: Increase field size of output.outputDirectory property value from 25 to 50

(Jarcec Cecho via Cheolsoo Park)