* src/program/ProgramInit.js (_isKnownType): Account for ancient qtype
representation (as a string).
* src/server/quote/ProgramQuoteCleaner.js (_isKnownType): Likewise.
* test/program/ProgramInitTest.js: New test case for this situation.
* test/server/quote/ProgramQuoteCleanerTest.js: Modify existing test case
for this situation.