HelpLine: Add the sources of the suicide numbers.

I also limited the triggering to exact matches because it's really hard to distinguish between non-suicide queries ('suicide girls', 'suicide silence', 'suicide is painless', etc.) and suicide queries. The plan is to just build on the list of suicide-y queries as we go along.
Helpline: Fix tests.
Helpline: Remove Canada from the tests.
HelpLine: Added more triggers.

Thanks to @zekiel and @moollaza.
HelpLine: Have similar number formatting for both kids and regular.
HelpLine: Add "suicide help";
HelpLine: Add "suicide intervention".
HelpLine: Added more suicidey triggers.
HelpLine: Add "ways to kill myself".
HelpLine: Add the country in the output.
HelpLine: Renamed "US" to "U.S."
HelpLine: Update tests.
Remove a scary `my $_` from Dice
Merge pull request #305 from duckduckgo/jag/release/suicide

HelpLine Release
Added trigger words and test cases to Loan.pm/t
added trigger words, corrected formatting
Merge pull request #311 from sahellebusch/master

Resolves Goodie Issue #302
Passphrase: replace word list with more common words.

Fixes issue #28

Rather than cleaning up the old list, I decided to replace it wholesale
with a list of more common words in American English.

This list is sourced from the free 5,000 most common word list on
http://www.wordfrequency.info.

The provided list was edited for a normalized format and to eliminate
duplicates and words of under 3 letters.
Merge pull request #312 from mwmiller/passphrase_words

Passphrase: replace word list with more common words.