Merge pull request #547 from duckduckgo/jag/hacker_news/item_custom

hacker_news.js: change from item to item_custom.
airlines: change to use a new template.
Merge pull request #533 from duckduckgo/jd/wordMap

wordMap: update api
Merge pull request #543 from duckduckgo/jd/reddit_search

reddit search: update api
Merge pull request #542 from duckduckgo/jd/github

github: update api
Merge pull request #545 from duckduckgo/jd/betterific

betterific: updated api
airlines.handlebars: don't show the whole airport name.
airlines: Print N/A if we don't have the gate or the terminal
airlines.js: reversed the array result.

Because it is in reverse order.
Merge pull request #548 from duckduckgo/jag/bttf/airlines

airlines: change to use a new template.
Timer: fixed erroneous dropdown trigger, visual fixes
meta block
adjusted data object
changed {{domain}} to {{this.domain}} due to conflict with helper fn
renamed api_result
changed to h3
id, meta block, helpers
helper names in template
chuck norris: changed more at link
twitter- using built-in image detail template, but tweet image ebedding test disabled for now