Tidy up K9's variable naming to match code style
Tidy up K9's variable naming to match code style

cketti/k-9,philipwhiuk/k-9,cketti/k-9,k9mail/k-9,cketti/k-9,k9mail/k-9,philipwhiuk/k-9,cketti/k-9,k9mail/k-9