pstoedit: 3.62 -> 3.70

Note that kde4.calligra, the only reverse dependency, fails to build,
but I have confirmed that it fails also with the previous pstoedit
version so the failure appears unrelated (nor does the error really
indicate that pstoedit is at fault ...).

Also
- Change meta.homepage; the original domain didn't work properly for me
- Split dev output; may want to split out bin/lib as well, for some
  decent saving
- Build with imagemagick for a slight size increase