Only proceeding with term save process if the current field is set. Resolves #67
Leveraging $_POST['action'] instead of the field being set to know whether or not to proceed
Breaking if-clause into two to improve readability
Merge branch 'save-term-nonce' of github.com:mboynes/wordpress-fieldmanager into mboynes-save-term-nonce

Conflicts:
	php/context/class-fieldmanager-context-term.php