(Bug 2774) (Bug 4892) (Bug 820) Mostly adding option for alt text from insert image popup, with a fix to some i18n, and improved aria
(Bug 4890) the description field text should link out to the faq
if the faq object doesn't exist, at least return sensible text
faq name instead of dw-specific faq number
Merge pull request #275 from deborahgu/2774

(Bug 2774) (Bug 4892) (Bug 820) (Bug 4890) Alt text for insert image popup