Refactor code. Fix some bugs.

+ Use lazy brain init.
* Move plugin code out of botlib.pm.
+ Now bot can private chatting
* Properly detect real jid if can, extract username from jid
* Change chatid generation, so all previously generated brains will be lost
+ Add !dig and !копать commands
+ Add !cat and !кис commands
* Some other minor changes

lib/conf.pm

@@ -17,7 +17,7 @@ $VERSION = '1.0';
 sub loadConf {
 	my $c = 'data/config.json';
 	open my $CH, '<', $c or die "[FATA] No conf at $c: $OS_ERROR\n";
-	my $len = (stat ($c)) [7];
+	my $len = (stat $c) [7];
 	my $json;
 	my $readlen = read $CH, $json, $len;