Added IP whitelist/blacklisting for telnet only

hashmap/README

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+This is a simple C hashmap, using strings for the keys.
+
+Originally based on code by Eliot Back at http://elliottback.com/wp/hashmap-implementation-in-c/
+Reworked by Pete Warden - http://petewarden.typepad.com/searchbrowser/2010/01/c-hashmap.html
+
+main.c contains an example that tests the functionality of the hashmap module.
+To compile it, run something like this on your system:
+gcc main.c hashmap.c -o hashmaptest
+
+There are no restrictions on how you reuse this code.