added check to timeline page that every project and every non-procedural ballot is present
replaced DenormalizedProjectBallots use of ballot public keys with a JSON encoded version of the data from the ballot instances
added tests for cancelling an import and wiping projects & ballots
use coverage.py to check unit test coverage
new test file for util.ImportCsvWipeTest
removed un-used CSV file
renamed check_backlog to check_ballot_backlog
updated to latest data
created request_update
updated to latest data
moved edit_project and add_project from timeline to project