Got abbreviated visits table loading into Postgres.
Set up code to make indicators from single functions.
Cleaned up code a bit. To add a new indicator one writes an R function and adds to the appropriate slot in indicators.json.
Minor edit.
Took out repeated line.
Writing a block for each domain fixes the memory issue.
Moved indicator functions into their own file.
Wrote a test of aggregate.
Simplified Makefile so all indicator tables are made at one time.
Got multiple sources merging together smoothly.
Got tables writing to the database.
Added some tests of our indicator functions.
Got most indicators up and running.
The code is no longer working from a csv file. It's all working off a postgres database.
Minor edit to rename table from my_visits to interactions.
Merge remote-tracking branch 'upstream/master' into dplyr

Conflicts:
	.gitignore
Added code to export csv files.
Added domain name to indicator tables.
Added number of cases touched as an indicator.
Added number of unique case followups and changed "evening" to "night".