New method to wait for a specific time
Use a collection for waitFor
Bump jsr305 version
Bump lombok version to (yet unreleased) 0.11.9 snapshot release
No need for @NonNull on primatives
Removed Sandbox
Issue #133: Re-added <B extends PircBotX> generics to Configuration
Merge remote-tracking branch 'origin/upstream'

Conflicts:
	src/main/java/org/pircbotx/Configuration.java