Rewrite BIP 68 to reflect current state of pull request #6312 #206

1. 
   maaku commented at 9:31 pm on September 23, 2015: contributor

   Including the removal of bit inversion and the allocation of future soft-fork bits.

   Includes and obsoletes #172.

2. Rewrite BIP to reflect current state of pull request #6312, including the removal of bit inversion and the allocation of future soft-fork bits. 95bac1809a
3. maaku cross-referenced this on Sep 23, 2015 from issue proposed BIP68 title change by maraoz
4. luke-jr referenced this in commit e413cd49de on Sep 23, 2015
5. luke-jr merged this on Sep 23, 2015
6. luke-jr closed this on Sep 23, 2015

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7. luke-jr referenced this in commit 955e874acc on Jan 20, 2018
8. luke-jr referenced this in commit e331aadf92 on Aug 27, 2020

Contributors
maaku