Photo Prompt Insight

Nudges a user to post a photo if they haven't in the past week,
as long as they have in the past two weeks.

References #1619
HTML Insight Text Tester

Simple Javascript tool to preview various headlines and bodies emebdded
in the html of an insight.
Added InsightDAO::getMostRecentInsight($slug, $instance_id)
Added GroupMembershipDAO::getNewMembershipsSince
Change List Membership Insight to be limited to once per week.

After a week since the last time the insight was generated,
if there are new memberships, any missed in the past week
are shown.

Also adds additional headline options.
Fix pluralization in weekly graph likes text.
Handle .me tld in all about me more comprehensively.
Merge pull request #1998 from cdmoyer/insight-text-tester

Insight text tester
Merge pull request #2003 from cdmoyer/reduce-group_membdership-repitition

Insight fix: Reduce group membership repetition
Merge pull request #2004 from cdmoyer/fix-singular-weekly

Insight fix: Fix singular like in weekly graph insight
Merge pull request #2005 from cdmoyer/1991-dotme-is-not-me-me-me-or-mi-mi-mi-do-re

Insight fix: Handle .me TLD more comprehensively in all about me
Closes #1991
Merge pull request #2006 from cdmoyer/1619-photo-prompt-insight

Photo Prompt Insight
closes #1619
Photo prompt: Remove first-run logic since this is a weekly insight
Fetch time_generated in InsightMySQLDAO::getInsight
Don't delete and recreate existing activityspike insights.
Merge pull request #2023 from cdmoyer/activity-spike-is-still-noisy

Stem Activity spike insight noise
Developer extras script to generate and scp rendered insight html

Added config file, README docs for insight-html-to-server
Add clearer first-run welcome message

They're sort of faux-insights in a new template, for users on thinkup.com.

Copy fixes and code cleanup around the first run experience.
Exclamation Count Insight

How often do you post super excitidely!!?!?!!?
Lets you know if you used exclamation points in the past 30
days.  Sometimes has a bar chart!!!
New insight; Meta Post Count
How often do you talk about the network on the network.

Closes #1977, closes #2011