Updating storage so that it can be set to post/get from DHT or disk
increasing #define sizes for udp packets, and key:value buffers for get/post hash
test now uses the updated storage, which writes and reads from DHT

also set the test to only do the find_node/post_hash/get_hash segment
of the test if
doFindPostGet is set to true. Need to hook this up to a cmd line arg.