Enable CHECKLOCKTIMEVERIFY as a standard script verify flag
Enable CHECKLOCKTIMEVERIFY as a standard script verify flag

Transactions that fail CLTV verification will be rejected from the
mempool, making it easy to test the feature. However blocks containing
"invalid" CLTV-using transactions will still be accepted; this is *not*
the soft-fork required to actually enable CLTV for production use.

Rebased-From: ffd75adce01a78b3461b3ff05bcc2b530a9ce994

OmniLayer/omnicore,upgradeadvice/MUE-Src,MonetaryUnit/MUE-Src,joulecoin/joulecoin,upgradeadvice/MUE-Src,MonetaryUnit/MUE-Src,joulecoin/joulecoin,upgradeadvice/MUE-Src,OmniLayer/omnicore,OmniLayer/omnicore,joulecoin/joulecoin,MonetaryUnit/MUE-Src,joulecoin/joulecoin,MonetaryUnit/MUE-Src,OmniLayer/omnicore,upgradeadvice/MUE-Src,upgradeadvice/MUE-Src,MonetaryUnit/MUE-Src,MonetaryUnit/MUE-Src,upgradeadvice/MUE-Src,OmniLayer/omnicore,joulecoin/joulecoin,OmniLayer/omnicore,joulecoin/joulecoin