posterdown_memoir phased to posterdown_pdf

Fully-ish customised sizing of the poster and colours :partly_sunny:
diff --git a/.Rproj.user/441ADA46/sources/prop/AAD9DB44 b/.Rproj.user/441ADA46/sources/prop/AAD9DB44
new file mode 100644
index 0000000..e3568cd
--- /dev/null
+++ b/.Rproj.user/441ADA46/sources/prop/AAD9DB44
@@ -0,0 +1,4 @@
+{
+    "cursorPosition" : "0,23",
+    "scrollLine" : "0"
+}
\ No newline at end of file