Add Cloudflare edge cache support with purging via cache tags

.editorconfig

@@ -0,0 +1,23 @@
+# This file is for unifying the coding style for different editors and IDEs
+# editorconfig.org
+
+# WordPress Coding Standards
+# https://make.wordpress.org/core/handbook/coding-standards/
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = tab
+indent_size = 4
+
+[{.jshintrc,*.json,*.yml}]
+indent_style = space
+indent_size = 2
+
+[{*.txt,wp-config-sample.php}]
+end_of_line = crlf
+

README.md

@@ -587,6 +587,10 @@ Fix url escaping [#82](https://github.com/rtCamp/nginx-helper/pull/82) - by
 
 * First release
 
+## Credits ##
+
+This plugin’s Cloudflare edge cache purging and cache tag architecture is inspired by the excellent work in [pantheon-systems/pantheon-advanced-page-cache](https://github.com/pantheon-systems/pantheon-advanced-page-cache).
+
 ## Upgrade Notice ##
 
 ### 2.2.3 ###