Add send, sendto, rec, recvfrom

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@328 42af7a65-404d-4744-a932-0658087f49c3

Documentation/NuttX.html

@@ -639,6 +639,8 @@ Other memory:
 	   http://www.sics.se/~adam/uip/index.php/Main_Page)
 	* Adding socket(), bind(), connect()
 	* Added snprintf()
+        * Added send() and sendto(); integrate write() and close() with socket descriptors.
+        * Added recv() and recvfrom().
 </pre></ul>
 
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