[dist] Posters now have a semver
[dist] Regenerated poster pdfs
[build] Generate thumbnails
[dist] Thumbnail views of posters
[dist] .gitignore ignores specific files instead of all files with particular names
[build] Less repetition and output spam in Makefile
[build] Show output of pdflatex so that we may diagnose problems (pdflatex does not output error information to stderr)
[fix] Status Code title no longer overruns (side effect of changing poster size to A0)
[build] Thumbs have fixed height instead of fixed width
[build] Remove large-scale PNG build directives from Makefile
[doc] Add basic thumbnails to README
[doc] Update image generation docs to reflect use of thumbnails instead of large-scale pngs
[dist] Regenerated poster pdfs and thumbs
[dist] Add aux, log, nav, out, snm and toc files to .gitignore
[dist] New Zazzle poster links
[fix] Thumbnail url