Fix some wildcard exception match warnings in db.
Fix some type erasure warnings in proto.
Manifest->Tag and erasure->runtimeClass in mapper.
Fix some postfix operator warnings in mapper.
Fix type erasure warnings in mapper.
Fix a val-in-for warning in mapper.
Import existentials as needed in mapper.
Fix wildcard exception match warnings in mapper.
 Fix type erasure warnings in record.
 Fix postfix operator warnings in record.
Fix pure expression warning in record.
Fix deprecated elem apply warning in record.
Import existentials as needed in record.
Merge remote-tracking branch 'origin/deprecator-exterminator' into dblicious
Merge pull request #1539 from lift/dblicious

Dblicious: Fix src warnings in lift-proto, lift-db, lift-mapper, and lift-record