tidied the blog and companion

Over the last two days, I applied a bunch of updates to this blog and companion pages. In no particular order. I added date links in the Messier life list page for a couple of reasons, to see the history or sequence in which I viewed an object, and to highlight the first logged entry. I found duplicate entries for Burnham 1, HD 5005 in the double stars life list. Noted that the NGC life list was missing a number of links to the recent BGO image captures. And one or two completely missing entries! Updated the photo gallery with 9 new images. I've started adding the text "Messier 999 (M999)" to blog posts to improve searching.