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/B68389EB b/.Rproj.user/441ADA46/sources/prop/B68389EB
new file mode 100644
index 0000000..09d4086
--- /dev/null
+++ b/.Rproj.user/441ADA46/sources/prop/B68389EB
@@ -0,0 +1,4 @@
+{
+    "cursorPosition" : "146,28",
+    "scrollLine" : "139"
+}
\ No newline at end of file