lib/survex.pot: Update source references.
lib/: Merge changes from template.
lib/id.po: Adapt an existing translation in obvious way.
lib/ru.po,lib/zh_CN.po: Fill in some translations from the wxWidgets
po files.
lib/,src/datain.c,src/img_hosted.c,src/printwx.cc,tests/badinc.out,
tests/badinc2.out,tests/badinc3.out: Merge two very similar
messages.
lib/: More translation updates.