Refactorings
Merge branch 'develop'
Fix critically wrong DB lookup

DSN lookup was inverted: non-full DSN DB registered as full, leading to
no connections being established at all
Pull hotfix
Add ad-hoc timeout to client loop
Improve client error bracketing
Add "To" parser module for specifying bootstrap servers later

(Module is currently dead, but will be useful to implement configurable
bootstrap servers)
Stub refactorings
Add random BSS sampling