Conversions: Adding failing test for not triggering on just unit names
Conversions: Enforcing whitespace after the left_unit to fix triggering on "seconds"
Conversions: Adding more tests around units
Merge pull request #738 from duckduckgo/mintsoft/conversions_fixes_yet_again

Mintsoft/conversions fixes yet again
Goodies Templates: update some goodies for auto-template usage.

Testing these in duckpan will depend upon the changes in that repository
being integrated.
ABC: updated with structured answer.

Includes a possible technique to encode multi-inputs for
auto-templating.
Ascii: update with structured answer.
AspectRatio: update with structured answer.
ZappBrannigan: add structured answer
CalendarConversion: move to structured answer.
Passphrase: add structured answer.
WhereAmI: add structured answer.
Morse: add structured answer.
DateMath: add structured answer.
HexToASCII: add structured answer.
Jira: add structured answer
Base64: use structured answer.
DuckDuckGo: add structured answer.
ReverseComplement: add structured answer
HelpLine: add structured answer.

Also, restructure data sources to make it easier for non-technical
people to contribute.