Re-organize / Rewrite "Double spend" subsection
Merge branch 'devdoublespend' of https://github.com/saivann/bitcoin.org into HEAD
Several minor tweaks to @saivann's revisions
Merge pull request #24 from harding/ds-fixes

A few minor tweaks to @saivann's double spend revisions
Additional fixes suggested by @harding
Merge pull request #23 from saivann/devdoublespend

Re-organize / Rewrite "Double spend" subsection