Revert "Change node-xmpp dependency"

This reverts commit 74b4a12b2e91a3aadc51c78faa73540bc1aaf0a1.
Revert ".git manquant"

This reverts commit b9a69a20e2679113cf48e50e9eda8c5cfc3f87cf.
Revert "ltx change"

This reverts commit 9bb671882f8f17c86f19400552f05920130a8807.