Interaction Graph insight bugfix
New insight: Long-lost contacts
Closes #1463, closes #1664
Response Time insight copy fixes
Closes #1670, closes #1700
New link list insight attachment template
Closes #1665, closes #1705
Get 12 followees replied to instead of just 5
Alter prefix for reply spike and word frequency insights
closes #1695, closes #1699
Fixes #1661 - Added hot_posts_data to Weekly Bests insight attachment
Merge pull request #1708 from nilakshdas/1661-weeklybestsinsight-fix

Weekly Bests insight fix, closes #1661
Response time copy fix
Only bold key stats, not whole phrase
Favorited links insight copy tweak: brief is better, standardize on other posts with lists of items
[DB MIGRATION REQ'D] Delete old Weekly best insights for regeneration
Moved getSyntaticTimeDifference() to InsightTerms class
Merge pull request #1709 from AaronKalair/move-get-syntatic-time-difference

Moved getSyntacticTimeDifference() to InsightTerms class
Expand URLs plugin: Get the title and description of expanded links during crawl
Improve insight links template: show user avatar, link originating tweet
Add missing mock function
Restore 'over the last week' to Response time insight
Fix reply spike insight bug where same insight gets renotified every crawl
Standout followers fix: Don't include verified followers in standouts list, closes #1696
Fix Reply spike tests