Hubot feature is not WIP
Add leftronic features
Add timecop for testing time-dependent things
Add steps for leftronic publisher feature
Change published time format so we can test easier

The format doesn't really matter.
Add cassettes for leftronic features
Remove separate trello cassettes
Use new-style Trello gem configuration
Add test for invalid data types
Merge branch 'refs/heads/master' into feature-leftronic-coverage

Conflicts:
	Gemfile
	Gemfile.lock
bundle
Revent bad merge of Gemfile, and rebundle
Re-add timecop (borked in bad merge)
Merge branch 'refs/heads/master' into feature-leftronic-coverage
Don't parse due date if it's not present
Merge pull request #162 from theodi/bugfix-invoicer-dates

Don't parse due date if it's not present
Merge branch 'refs/heads/master' into feature-leftronic-coverage
Merge pull request #127 from theodi/feature-leftronic-coverage

Leftronic coverage and trello tidyup
Merge branch 'refs/heads/master' into feature-110-create-capsule-contact