Return info on addresses only seen in 0conf txs
Merge pull request #101 from aalness/0conf_addrs

Return info on addresses only seen in 0conf txs
Speed up MemoryPool#remove_for_block
Merge pull request #103 from aalness/fast_rm_for_block

Speed up MemoryPool#remove_for_block
Fix PUT /transactions
Merge pull request #104 from aalness/fix_put_tx

Fix PUT /transactions
Github link style
Merge pull request #105 from coinbase/samo_github_link

Github link style
Change PUT /transactions to POST /transactions
Merge pull request #106 from adrianmacneil/post_transactions

Change PUT /transactions to POST /transactions
Add Dogecoin support

Added Dogecoin network protocol version numbers.
Added Digishield difficulty calculations for Dogecoin.
Dogecoin testnet difficulty reset now functions correctly.
Added initial draft of AuxPoW handling, primarily for Dogecoin at this time however
any chain following the Namecoin merged mining specification should work. AuxPoW blocks
are now identified, and the AuxPoW data validated and checked against the difficulty of
that block.
Continued Dogecoin support

Updated minimum work that can be required for a block to handle Dogecoin Digishield blocks.
Moved difficulty target calculation code into Bitcoin-Ruby.
Disabled expectation of block v2 for Dogecoin.
Expand total received and sent fields in the address table, to handle
extremely high value addresses in Dogecoin.