[GNC] Online quotes

[Ken Farley]

 From the release notes:

The Online Quotes facility has been completely rewritten and the old 
gnc-fq-check, gnc-fq-dump, and gnc-fq-helper programs have been replaced 
with finance-quote-wrapper. The functions performed by those programs 
may now be accomplished by passing commands to gnucash-cli -Q, see 
gnucash-cli --help for specifics. The perl module requirements have 
changed with the rewrite: The new version doesn't need Date::Manip but 
needs JSON::Parse instead. gnc-fq-update has been, er, updated to 
reflect that.