prevent empty chat-messages from being sent
Added test for empty-message-block
Only create clientVars when they are needed
Added hook for clientVars and hook-doc
Require ueberDB 0.1.9, not 0.1.8; this is needed for findKeys
Merge pull request #1359 from mluto/package-json-ueberDB

Require ueberDB 0.1.9, not 0.1.8; this is needed for findKeys
Merge pull request #1355 from mluto/chat-no-empty-line

prevent empty chat-messages from being sent
Merge pull request #1358 from mluto/clientvars-hook

Make the creation of clientVars hookable