Added percent symbol to alternate text for AgeAnalysis.
Merge pull request #2160 from cdmoyer/add-percent-symbol-to-age-analysis

Age analysis insight fix: Add percent symbol to alternate text
Add InsightPluginParent::shouldGenerateAnnualInsight
Add InsightPluginParent::shouldGenerateEndOfYearAnnualInsight
Added getThisYearOfPostsIterator to PostDAO
Added iterator argument to PostDAO::getALlPostsInRange
Added iterator argument to PostDAO::getAllMentionsInRange
New insight: Thanksgiving Who You Thanked insight
Thanksgiving Who Thanked You insight
Thanksgiving insight tweaks

Remove action button
Add link to conversations
Add TimeHelper::getDaysSinceJanFirst
Add Utils::getPopularityIndex
Issue #2136: Most replied-to/commented-on post; End of Year

Added shouldGenerateEndOfYearAnnualInsight; ready to go