Refactoring more into /lib/core
Improving formatting docs for number fields
Adding new example projects
Updating dependencies
Adding deploy to Heroku button
Adding docs about how to disable logging, for #675
sendTemplate support
Mandrill: send (template), renderMandrill
Merge branch 'feature/mandrill/sendTemplate' of github.com:ignlg/keystone into feature/mandrill/sendTemplate

* 'feature/mandrill/sendTemplate' of github.com:ignlg/keystone:
  sendTemplate support

Conflicts:
	lib/email.js