Make outreach graph size dynamic.

Sized based on container.
Allocate 70px for 11px day labels.

References #1769
Make Foursquare tests require statements consistent with other plugins
Fixes warning about index not being found
Alter Reply Spike Insight to use correct term for posts.
Merge pull request #1775 from AaronKalair/reply-spike-term-fix

Alter Reply Spike Insight to use correct term for posts.
Merge pull request #1774 from AaronKalair/twitter-warning-fix

Fixes warning about index not being found
Merge pull request #1773 from AaronKalair/foursquare-test-fix

Make Foursquare tests require statements consistent with other plugins
Merge pull request #1771 from cdmoyer/1769-Outreach-Graph-Cut-Off

Make outreach graph size dynamic. Closes #1769