More visual tweaks

The three most recent images that are shown on the homepage now include a small flag to represent the country in which the photo was taken.
All large views of the gallery also now include a flag, and the text has been tidied up a bit.
Each individual photo now includes the common name, scientific name, country and flag for the species being viewed.
Finally, the ‘recent tweets’ section that is displayed on every page has had media previews removed, and the number of recent tweets increased from 1 to 3.

As an aside, I’ve booked flights for two trips in 2020. The first is due to take place at the end of March, and is in pursuit of a very rare species that I’ve been wanting to get on the list for a long time. Whether I’m successful or not, I’m pretty confident some other new species will be seen along the way. The second trip doesn’t take place until early August, and if all goes to plan, it will be quite an adventure. I’ll be heading back to the tropics with a fairly long list of ambitious targets that I’ll be looking for.