Constantinople EIP (ethereum#1013)

* Create constantinople.md

* Update and rename constantinople.md to eip-1013.md

* Update eip-1013.md

Add EIP-145

* Rename eip-1013.md to EIPS/eip-1013.md

EIPS/eip-1013.md

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+---
+eip: 1013
+title: "Hardfork Meta: Constantinople"
+author: Nick Savers (@nicksavers)
+type: Meta
+status: Draft
+created: 2018-04-20
+requires: 145, 210
+---
+
+## Abstract
+
+This specifies the changes included in the hard fork named Constantinople.
+
+## Specification
+
+- Codename: Constantinople
+- Aliases: Metropolis/Constantinople, Metropolis part 2
+- Activation:
+  - Block >= TBD on Mainnet
+  - Block >= TBD on Ropsten testnet
+- Included EIPs:
+  - [EIP 145](./eip-145.md) (Bitwise shifting instructions in EVM)
+  - [EIP 210](./eip-210.md) (Blockhash refactoring)
+  - ...
+
+## References
+
+1. Links to Ethereum blog announcement and others
+
+## Copyright
+
+Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).