Clean up license and (C) notice, prep for release

.cdb.json

@@ -0,0 +1,10 @@
+{
+	"type": "txp",
+	"title": "NodeCore Improved",
+	"short_description": "Improved textures for NodeCore (Community Edition)",
+	"tags": ["16px"],
+	"license": "CC-BY-SA-4.0",
+	"media_license": "CC-BY-SA-4.0",
+	"repo": "https://github.com/Warr1024/NodeCoreImprovedPack",
+	"issue_tracker": "https://discord.gg/NNYeF6f"
+}

.cdbrelease.lua

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+-- LUALOCALS < ---------------------------------------------------------
+local math, tonumber
+    = math, tonumber
+local math_floor
+    = math.floor
+-- LUALOCALS > ---------------------------------------------------------
+
+-- luacheck: push
+-- luacheck: globals config readtext readbinary
+
+readtext = readtext or function() end
+readbinary = readbinary or function() end
+
+local stamp = tonumber("$Format:%at$")
+if not stamp then return end
+stamp = math_floor((stamp - 1540612800) / 60)
+stamp = ("00000000" .. stamp):sub(-8)
+
+return {
+	user = "Warr1024",
+	pkg = "nodecoreimproved",
+	dev_state = "ACTIVELY_DEVELOPED",
+	version = stamp .. "-$Format:%h$",
+	long_description = readtext("README.md"),
+	screenshots = {readbinary('.cdbscreen.jpg')}
+}
+
+-- luacheck: pop

.gitattributes

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+.cdbrelease.lua	export-subst
+.cdbscreen.jpg	export-ignore
+.cdb.json	export-ignore
+.git*		export-ignore
+.lua*		export-ignore
+docs		export-ignore
+src		export-ignore

LICENSE

@@ -0,0 +1,8 @@
+Compilation and Portions (C)2020-2022 Aaron Suen <warr1024@gmail.com>
+Portions (C)2019 Nicole Collings (Aurailus)
+Portions (C)2022 Arsenicus (Arekusei) <divided0303@gmail.com>
+
+This work is licensed under the
+  Creative Commons Attribution-ShareAlike 4.0 International License
+
+https://creativecommons.org/licenses/by-sa/4.0/

LICENSE.md

@@ -1 +0,0 @@
-This work is licensed under the [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/)

README.md

@@ -1,18 +1,14 @@
-# Nodecore Improved Pack
+# Nodecore Improved (Unified)
 
-**Improved textures for NodeCore**
+Based on the original *NodeCore Improved Pack* by Aurailus, plus fixes for modern NodeCore, and other contributions.  Accepting contributions from the community (*must* be original work and CC-BY-SA-4.0 licensed).
 
----
+Currently maintained by **Warr1024**
+
+### Credits
 
 - Original textures by Nicole Collings (Aurailus)
 - Fixes by Warr1024
   - Grass side texture registration
   - Various cobble-based items
 - Updates by Arekusei
-  - Water, Sponges, Charcoal
-
-Currently maintained by [Warr1024](https://github.com/Warr1024/NodeCoreImprovedPack)
-
----
-
-*This work is licensed under the [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/)*
+  - Water, Sponges, Charcoal