test for _ssl

I'm still suspicious

Change-Id: I56bfbe1ea2f92ffba6264b7543fa5df7f29f2bd0
remove unused macros

Change-Id: Ie051a0d584fc0470237f4ac0723e8730a6b47ed3
crash in selecting text in comments midway in para

Change-Id: Iaab71e201fae6a03936ccc6aac040027a183209c
mpTextRangeOverlay might not exist

if there is no range for the comment

Change-Id: I34b9ca9f0974f1d614268fd2df2ded704cd543d2
Related: fdo#36815 center scaled comment page vertically

so comments at the top of the page don't get clipped
off the true printable area

Change-Id: Icb796c901372437b276e7ce4e31c08e0bf2ec250