Export the hdkeychain min and max seed byte lens.
Changed TxIn.PreviousOutpoint to TxIn.PreviousOutPoint after btcwire API change.
Merge remote-tracking branch 'conformal/master' into confmerge
Merge pull request #3 from mably/confmerge

ppc: merged conformal/master, tests ok
Merge remote-tracking branch 'remotes/origin/master' into mably