Update release notes for 1.14 (dogecoin#1464)

* Move old release notes out of the way
* Removed very old Bitcoin release notes as of minimal value in the context of Dogecoin.
* Move remaining Bitcoin release notes into their own folder.
* Move Bitcoin 0.9 release notes into Bitcoin release notes folder.
* Start cleaning up release notes to reflect Doge

doc/release-notes/RELEASE_NOTES_1.8.2.md

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+# Dogecoin Core 1.8.2
+
+Dogecoin Core 1.8.2 is a bugfix release. It updates OpenSSL to 1.0.1l, mainly fixing security issues.
+
+## Dogecoin Core Release Notes
+
+* Update to OpenSSL 1.0.1l
+
+
+## OpenSSL Warning
+
+The main takeaway is that builds from https://dogecoin.com are not affected. But if you build your own version,
+please make sure you update to 1.8.2 **before** updating your OpenSSL!
+
+Please refer to this section in the Bitcoin Core release notes for further info: https://github.com/bitcoin/bitcoin/blob/0.9/doc/release-notes.md#openssl-warning
+
+
+## Credits
+
+Listed in strictly alphabetical order, using name listed in Github. This
+includes those whose contributions to Bitcoin Core have been merged
+into Dogecoin Core:
+
+* Cory Fields
+* langerhans
+* Patrick Lodder
+* Gregory Maxwell
+* Ross Nicoll
+* Wladimir J. van der Laan

doc/release-notes/RELEASE_NOTES_1.8.3.md

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+# Dogecoin Core 1.8.3
+
+Dogecoin Core 1.8.3 is a security release. It fixes issues in regards to an upcoming announcement of possible DoS vulnerabilities.
+See [the announcement on the bitcoin-dev mailing list](https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-June/009135.html) for reference.
+It is strongly recommended to upgrade your installation in case you run a node open to inbound connections from the internet.  
+If your installation is not open to incoming connections this update is not mandatory, but we still recommend keeping your client up to date.
+
+## Dogecoin Core Release Notes
+
+* Pull in patches from usptream to mitigate the risk of a DoS attack.
+* Update the DNS seeds for more reliable bootstrapping of the initial peer discovery.
+* Update the list of fixed nodes, in case all other means of peer discovery fail.
+
+## Credits
+
+Listed in strictly alphabetical order, using name listed in Github. This
+includes those whose contributions to Bitcoin Core have been merged
+into this Dogecoin Core release:
+
+* P. Kaufmann
+* Max K.
+* Ross Nicoll
+* Wladimir J. van der Laan
+* Pieter Wuille

doc/release-notes/RELEASE_NOTES_1_8.1.md

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+# Dogecoin Core 1.8.1
+
+Dogecoin Core 1.8.1 is primarily a bugfix release, bringing Dogecoin Core in
+line with Bitcoin 0.9.3. Dogecoin Core 1.8.1 also adds in support for printing
+paper wallets, and disables connections to pre-1.8 clients. This is a RECOMMENDED
+upgrade due to the large number of bug fixes, but is not a required one.
+
+Paper wallet support has been developed by AndyMeows (IRC username), and 
+can be accessed via the "File" menu. It's intended for two purposes; to generate
+small value paper wallets to hand out, and more permanent deposit paper wallets
+for keeping balances offline.
+
+IMPORTANT: If you are producing offline paper wallets, you should do so on a
+computer that's disconnected from the Internet. While the wallet generator
+does not save the keys it generates, this ensures there is no risk of a virus
+or similar capturing the key from memory or interfering with its generation.
+
+## Dogecoin Core Release Notes
+
+* Translation improvements and corrections
+* Disable Transifex based translation process (not used by Dogecoin Core)
+* Add checkpoints around AuxPoW switchover block (371,337)
+* Disable connections from pre-1.8 Dogecoin Core clients
+* Use HTTPS with dogechain.info
+* Remove unreachable code introduced with AuxPoW support
+* "blocknotify" option now supports %i as a format parameter, which is replaced by block height
+* New option "maxoutconnections" to set the maximum number of outbound peer connections. Defaults to 8, minimum is 2, maximum is whatever "maxconnections" is set to (default 125).
+
+## Bitcoin Core Release Notes
+
+Full release notes for Bitcoin Core 0.9.3 are available from
+https://bitcoin.org/en/release/v0.9.3 , but highlights are included
+below:
+
+
+* Better orphan transaction handling
+* Add -maxorphantx=<n> and -maxorphanblocks=<n> options for control over the maximum orphan transactions and blocks
+* key.cpp: fail with a friendlier message on missing ssl EC support
+* Upgrade OpenSSL to 1.0.1i (see https://www.openssl.org/news/secadv_20140806.txt - just to be sure, no critical issues for Bitcoin Core)
+
+## Known Issues
+
+There is a known issue with quantities in JSON used by the RPC interface (https://github.com/dogecoin/dogecoin/issues/134).
+This stems from the use of a floating point precision number to hold fixed precision data.
+Currently looking at solutions, which primarily either involve JSON which is not compliant
+to the specification, or making the RPC layer slightly incompatible with the conventional
+Bitcoin API.
+
+This only affects values significantly below 1 Doge, however merchants may wish to round to
+the nearest Doge on all transactions for now.
+
+## Credits
+
+Listed in strictly alphabetical order, using name listed in Github. This
+includes those whose contributions to Bitcoin Core have been merged
+into Dogecoin Core:
+
+* Abderraouf Adjal
+* Andymeows
+* Daniel Kraft
+* Gavin Andresen
+* langerhans
+* michilumin
+* nameEO
+* Patrick Lodder
+* Ross Nicoll
+* Wladimir J. van der Laan
+* Whit J