Fixes to make the printing inside dayboxes (esp month prints) look nicer

and fit better.
Includes a patch from Fred Feuerstein, Thanks!

REVIEW: 105609
BUG: 217225,237292,251681,263442
FIXED-IN: 4.8.5
MERGE: 4.8,4.9
(cherry picked from commit 650e0c6a)

Conflicts:
	korganizer/printing/calprintpluginbase.cpp