Initial commit
added comments
added numeric search and test
Cleaned and commented code
updated test to match secondary example queries
updated to @mwmiller's suggested cleanup
add next/pre month links for calendar
account for year in next/pre links
Initial commit for "Uptime" goodie
Conversions: update to 0.026.

Corrects the conversion factor for square kilometers, fixing #733 in the
process.

Also, adding a couple more regression area tests, with answers confirmed
via alternative sources.
Merge pull request #735 from mwmiller/conversions_update

Conversions: update to 0.026.
- Use DDG::GoodieRole::NumberStyler i.o. Regex:Common
- Test and remove '%' in one operation
Added a test
Minor - soft tab i.o. tab (nasty Codio)
Turned ne test into eq test
Simplify expression using map
Allow 'uptime' trigger at the end
Added invalid query in tests
Conversions: Adding failing test for not triggering on just unit names
Conversions: Enforcing whitespace after the left_unit to fix triggering on "seconds"