iteration on tests...
Fix race condition between accessing database and database cache

for some reason, this race triggered more frequently on MacOS than on Linux.  Or
more frequently for Italians than for Germans.  Or whatever.

In general, we need to get away from keeping state in too many places, and
having too many access parts to those state information!
Add test issue 114 part 3
fix return type switching
tweak test timings
auto-documentation for resource dictionary
updates to res docs
added sample description for archer
fixes #245
add new description keys

Ole, please test one example or something before pushing to master ;)
fixes #235
fixes #245
added test case for #286
remove numpy dependency
easier to debug...
Merge branch 'master' into devel