finished post hash and reply post hash. awesome sauce.
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storing the hash in a bdHashSpace when msgin_post_hash is called
updated ye olde task list
fixed bug in my hash usage code in bdnode
added a quick and dirty test case for putting/getting from bdHashSpace
task list update
asserting if key:value not found in hash space test
get_hash now looks up the key in the bdHashSpace that the node maintains.

And now the post_hash get_hash circle is complete.
test goes through post and get hash, it works.