updated chain table added cold_storage table
Added 'coins circulating' to home page
added coins cirulating and total cold storage value
Added API for coins circulating
instructions for updating coins circulating
calculate cold wallet balances at runtime
Update README-COINSCIRC.txt
updated README-COINSCIRC.txt
code cleanup
Delete README-COINSCIRC.txt
Merge branch 'master' of https://github.com/ddirt/blockchain-explorer

Conflicts:
	README-COINSCIRC.txt
Update README-COINSCIRC.txt
added txComment to transaction page
added tx-comment to /rawtx/ page
Added tx-comment to block page transactions table
code cleanup; change html style
updated version # and changelog
added /messages page to view 150 recent comments
added messages link to homepage
Merge branch 'master' of https://github.com/ddirt/blockchain-explorer into ddirt-master

Conflicts:
	Abe/DataStore.py
	Abe/deserialize.py