Cleanup question field, topic & industry filters.
Update topic and industry filters, specs.
Filter multiple industries and topics.
Merge pull request #40 from GovWizely/tim/parature-faqs

Tim/parature faqs
Update Source field in CSL endpoint.

[#81870294]
change null -> nil, only store (alt) annual rates with values, convert those values from array to hash. [81829700]
convert "nil" string to nil object.
Merge pull request #41 from GovWizely/james/tariff-rate-tweaks

Tariff Rate Tweaks [81829700]
Rubocop says: strings without interp. should be

single quoted.
Move TradeEvent to ItaTradeEvent.

[#77714604]
TradeEvent module: better org. of related classes.
Developer sees SBA Events feed.

[#77508648]
Reorganize TradeEvents::Ita specs.
Ability to index all Trade Event sources.
Consolidated Trade Events API spec.
Able to filter cons. Trade Events by sources.
Developer sees Ex-Im trade events.

[#77045504]

Conflicts:
	app/models/trade_event/consolidated.rb
	lib/tasks/ita.rake
SBA's street field maps to address.
EXIM/SBA: Industries empty array if none in source
SBA: Remove state, add industries to multi-match.