Added initial draft for an EIP regarding ENS text records. (#634)

* Added initial draft for an EIP regarding ENS text records.

* Changed extended to vendor specific and added some keys.

* Updated to new preamble header.

* Initial Merkle-Airdrop EIP draft.

* Added author Nick Johnsom and fixed typo.

* Fixed typo.

* Update and rename eip-draft-ens-text-data.md to eip-634.md

* Removed draft for merkle air-drops.

EIPS/eip-634.md

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+---
+eip: 634
+title: Storage of text records in ENS 
+author: Richard Moore <me@ricmoo.com>
+type: Standards Track
+category: ERC
+status: Draft
+created: 2017-05-17
+---
+
+## Abstract
+This EIP defines a resolver profile for ENS that permits the lookup of arbitrary key-value
+text data. This allows ENS name holders to associate e-mail addresses, URLs and other
+informational data with a ENS name.
+
+
+## Motivation
+There is often a desire for human-readable metadata to be associated with otherwise
+machine-driven data; used for debugging, maintenance, reporting and general information.
+
+In this EIP we define a simple resolver profile for ENS that permits ENS names to
+associate arbitrary key-value text.
+
+
+## Specification
+
+### Resolver Profile
+A new resolver interface is defined, consisting of the following method:
+
+    function text(bytes32 node, string key) constant returns (string text);
+
+The interface ID of this interface is 0x59d1d43c.
+
+The `text` data may be any arbitrary UTF-8 string. If the key is not present, the empty string
+must be returned.
+
+
+### Initial Recommended Keys
+
+Keys must be made up of lowercase letters, numbers and the hyphen (-). Vendor specific
+services must be prefixed with `vnd.`.
+
+- **email** - an e-mail address
+- **url** - a URL
+- **avatar** - a URL to an image used as an avatar or logo
+- **description** - A description of the name
+- **notice** - A notice regarding this name; 
+- **keywords** - A list of comma-separated keywords, ordered by most significant first; clients that interpresent this field may choose a threshold beyond which to ignore
+- **vnd.twitter** - a twitter username (should it be prefixed with an @?)
+- **vnd.github** - a GitHub username
+
+
+## Rationale
+
+### Application-specific vs general-purpose record types
+Rather than define a large number of specific record types (each for generally human-readable
+data) such as `url` and `email`, we follow an adapted model of DNS's `TXT` records, which allow
+for a general keys and values, allowing future extension without adjusting the resolver, while
+allowing applications to use custom keys for their own purposes.
+
+## Backwards Compatibility
+Not applicable.
+
+## Test Cases
+TBD
+
+## Implementation
+None yet.
+
+## Copyright
+Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).