Now prints frame numbers as part of frame titles in handout
Added lmkclean Arara directive to MMD files
Removed scripts.tex
Removed frame numbers from handouts (they weren't numbered right)
Added some macros
If \mydate is defined, it will be formatted with \printdate
The \deno macro will now use \text and \textquote
Now using \textemdash in title
Merge branch 'master' into For-GitHub

Various changes.

Signed-off-by: Thomas Hodgson <thomas.hodgson@gmail.com>