Add deduplication precision toggle, fix printing odd characters and implement sending messages to all instances of a certain network, or all networks associated with a certain alias

conf/example/config.json

@@ -28,6 +28,7 @@
     "Password": "s",
     "Tweaks": {
         "MaxHash": 10,
+        "DedupPrecision": 9,
         "ZNC": {
             "Prefix": "*"
         },

conf/help.json

@@ -25,5 +25,6 @@
     "provision": "provision <relay> <alias> [<network>]",
     "cmd": "cmd <relay> <user> <entity> <text ...>",
     "token": "token <add|del|list> [<key>] [<relay>]",
-    "all": "all <entity> <text ...>"
+    "all": "all <entity> <text ...>",
+    "allc": "allc <network|alias> <(network)|(alias)> <entity> <text ...>"
 }