Add translations for "zero or more ?"
Improve anchors translations

Add option of "start/end of string"
Add option of definite or indefinite article
Add keyboard navigation ability

Add :focus styles to nav and help tab
Add focus event to help tab show/hide function
Add tabindex to input, nav items and help tab
Make the help panel keyboard friendly

Add focus styles to links so they can be identified if tabbing around
Add focus style to help-tab
Add enter key trigger to open help panel