Replace whitelist/blacklist with safe/block-list #2532
Description
Lagom uses the terms whitelist/blackslit in a couple of places (internally and externally).
It'd be nice to adopt other naming (see for example TravisCI moving to safelist/blocklist).
There's at least the exception-whitelist:
lagom/service/core/client/src/main/resources/reference.conf
Lines 24 to 27 in d021b2a
And the dependencyWhitelist:
lagom/project/Dependencies.scala
Line 133 in d021b2a