Ignore skel and compiled. These are generated by Make
Remove \insertQR, redundant renewcommand AND \ifprintrubric as part of cleaning TeX
Cleaned up question.tex files

Which means, removing
  1. All lines that are just comments
  2. \insertQR
  3. \ifprintrubric blocks
  4. Unused \renewcommands
Cleaned up question.tex files ...
A dummy target added for question.tex

This way, any change in question.tex would trigger a recompilation.
In mint/, where there is no question.tex, the empty recipe will do nothing
Local changes committed
Resolved merge conflict
Merge branch 'master' of https://github.com/gutenberg/gutenberg

Conflicts:
	vault/2/25h/ogfo4/question.tex
Merge pull request #610 from abhinavc/master

Merged gutenberg:master