Security fixes

Updated menu settings to ensure all items are hidden from non-logged in users. All they should see is the login/register form.

Did the same for widgets in the main menu (required two new widgets).

Image issues resolved

Today I enlisted the help of someone from the bluehost helpdesk. I have been struggling to upload images larger than about 200k without error. As a consequence I have been compressing perfectly good photos in order to upload them and the results have been far from satisfactory. My issues are now resolved (fingers crossed) so I can use original size images. Over time, I will slowly replace compressed images in older posts and pages.