Merge pull request #792 from abhinavc/master

Minor edits
Merge pull request #793 from abhinavc/master

1/n1h part 1
Merge pull request #794 from abhinavc/master

1/n1h part 2
Merge pull request #795 from abhinavc/master

1/o5h
Merge pull request #796 from abhinavc/master

Create codex.cdx afresh with every recompilation
Merge pull request #797 from abhinavc/master

Shave sides off pg-*.png
Merge pull request #798 from abhinavc/master

1/q6h part 1
Merge pull request #799 from abhinavc/master

1/q6h part 2
Merge pull request #800 from abhinavc/master

1/qdh part 1
Merge pull request #801 from abhinavc/master

1/qdh part 2
Merge pull request #802 from abhinavc/master

Minor corrections
Merge pull request #803 from abhinavc/master

1/qyg part 1
Merge pull request #804 from abhinavc/master

Edited 2/zyg/hco8i
Merge pull request #805 from abhinavc/master

Edited 1/i4h question text
Merge pull request #806 from abhinavc/master

1/gyq part 2
Merge pull request #807 from abhinavc/master

1/gyq part 3
Merge pull request #808 from abhinavc/master

Added an alternate proof
Merge pull request #809 from abhinavc/master

Changes in makefiles and scripts + some utility LaTeX methods
Merge pull request #810 from abhinavc/master

Reverting to old resolution for pngs
Merge pull request #811 from abhinavc/master

Added a new method - WRITELINE[4]