printing: Fix centering when shrinking to printable area but not scaling

When shrinking to printable area is selected and we don't need to scale
because the document fits in the printable area, the document is
centered applying the current scale. Since we are not going to scale in
that case, we should ignore any scale value > 1 when shrinking to
printable area.
Updated Greek translation
Tajik translation updated
Updated Czech translation
Updated Brazilian Portuguese translation
Updated Brazilian Portuguese translation
libmisc: Remove unneeded header include
libmisc: Add missing G_BEGIN_DECLS/G_END_DECLS to ev-page-action-widget.h
Updated Spanish translation
Prevent jumps to last page when autoscrolling

It can happen during autoscrolling that current page is set to the last one
when you are moving towards beginning of the document and crosses toolbar
above the document.
This happens due to filling of unsigned integer "scroll_info.last_y"
with negative value.

https://bugzilla.gnome.org/show_bug.cgi?id=725389
Remove redundant code

The if() condition can not be satisfied.
Updated Indonesian translation
Updated Lithuanian translation