Simplify tests.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Add `weechat-version'.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Store `weechat-version' as string.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Improve `weechat-relay-test-test-command'.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
weechat-relay: Return nil for null-pointers.

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>