Squashed 'ouexam/' changes from 04c3ee1..1e12787 ...

1e12787 Updated changelog through v2.1.1
9b5a5a5 Switched on changelog and index
f5ab34c Stripped out tabs
7975510 Fixed overfull hboxes in source (closes #43)
fc875c7 Enabled SyncTeX
6d19d18 Fixed missing \end{macrocode}
6fe9817 Fixed LaTeX-workshop recipes
25ed28c Refactored marks printing (closes #32)
0cfdac1 Prevented auto LaTeX build in VS Code

git-subtree-dir: ouexam
git-subtree-split: 1e12787