Fix bad zlib test; fixes #13406
Improve error messages for libpath problems.
Include z3c.recipe.staticlxml fork that fixes underlinking.
Adapt testing to new 4.3 procedures
Add missing lxmlpy part
Add tests for --build-python and other dependencies
Plone is not a phone
Expand platform-specific instructions
Build libjpeg when needed, even with virtualenv python
Bring history up to date for last few changes
Adapt to 4.3b2