[Feature] Staticman v3 Support (#440)

* Added Staicman support

* Corrected template for staticman.yml

* Edit for coherence with _includes/disqus.html

* Updated documentation for Staticman

* Updated License to give credits to Michale Rose

* Update LICENSE

* add more staticman details to readme

* Clearer instructions about reCAPTCHA in YML

* Nest reCAPTCHA param inside Staticman

* Prepend all css selectors with .staticman-comments

Edit suggested by theme owner to avoid CSS rules overriding.

* Add myself to the change log

* Update _config.yml

staticman.yml

@@ -0,0 +1,108 @@
+# Name of the property. You can have multiple properties with completely
+# different config blocks for different sections of your site.
+# For example, you can have one property to handle comment submission and
+# another one to handle posts.
+# To encrypt strings use the following endpoint:
+# https://{STATICMAN API INSTANCE}/v3/encrypt/{TEXT TO BE ENCRYPTED}
+# {STATICMAN API INSTANCE} defaults to staticman3.herokuapp.com
+
+comments:
+  # (*) REQUIRED
+  #
+  # Names of the fields the form is allowed to submit. If a field that is
+  # not here is part of the request, an error will be thrown.
+  allowedFields: ["name", "email", "url", "message"]
+
+  # (*) REQUIRED WHEN USING NOTIFICATIONS
+  #
+  # When allowedOrigins is defined, only requests sent from one of the domains
+  # listed will be accepted. The origin is sent as part as the `options` object
+  # (e.g. <input name="options[origin]" value="http://yourdomain.com/post1")
+  # allowedOrigins: ["https://example.com"]
+
+  # (*) REQUIRED
+  #
+  # Name of the branch being used. Must match the one sent in the URL of the
+  # request.
+  branch: "master"   #  use "master" for user page
+  #branch: "gh-pages" #  use "gh-pages" for project page
+
+  commitMessage: "New comment by {fields.name}"
+
+  # (*) REQUIRED
+  #
+  # Destination path (filename) for the data files. Accepts placeholders.
+  filename: "comment-{@timestamp}"
+
+  # The format of the generated data files. Accepted values are "json", "yaml"
+  # or "frontmatter"
+  format: "yaml"
+
+  # List of fields to be populated automatically by Staticman and included in
+  # the data file. Keys are the name of the field. The value can be an object
+  # with a `type` property, which configures the generated field, or any value
+  # to be used directly (e.g. a string, number or array)
+  generatedFields:
+    date:
+      type: "date"
+      options:
+        format: "iso8601" # "iso8601" (default), "timestamp-seconds", "timestamp-milliseconds"
+
+  # Whether entries need to be approved before they are published to the main
+  # branch. If set to `true`, a pull request will be created for your approval.
+  # Otherwise, entries will be published to the main branch automatically.
+  moderation: true
+
+  # Akismet spam detection.
+  # akismet:
+  #   enabled: true
+  #   author: "name"
+  #   authorEmail: "email"
+  #   authorUrl: "url"
+  #   content: "message"
+  #   type: "comment"
+
+  # Name of the site. Used in notification emails.
+  # name: "Your Site"
+
+  # Notification settings. When enabled, users can choose to receive notifications
+  # via email when someone adds a reply or a new comment. This requires an account
+  # with Mailgun, which you can get for free at http://mailgun.com.
+  # notifications:
+    # Enable notifications
+    # enabled: true
+
+    # (!) ENCRYPTED
+    #
+    # Mailgun API key
+    # apiKey: ""
+
+    # (!) ENCRYPTED
+    #
+    # Mailgun domain (encrypted)
+    # domain: ""
+
+  # (*) REQUIRED
+  #
+  # Destination path (directory) for the data files. Accepts placeholders.
+  path: "_data/comments/{options.slug}" # (default)
+
+  # Names of required files. If any of these isn't in the request or is empty,
+  # an error will be thrown.
+  requiredFields: ["name", "email", "message"]
+
+  # List of transformations to apply to any of the fields supplied. Keys are
+  # the name of the field and values are possible transformation types.
+  transforms:
+    email: md5
+
+  # reCAPTCHA (OPTIONAL)
+  # Register your domain at https://www.google.com/recaptcha/ and choose reCAPTCHA V2
+  # Use your OWN siteKey and secret.
+  reCaptcha:
+    enabled: false
+    siteKey: "6Lcv8G8UAAAAAEqV1Y-XEPum00C_DxhD6O--qkFo"
+    # (!) ENCRYPT reCaptcha secret key using Staticman /encrypt endpoint
+    # i.e. https://staticman3.herokuapp.com/v3/encrypt/{your-site-secret}
+    # For more information, https://staticman.net/docs/encryption
+    secret: "p5uHlH9hCqpMJaGKXdt5MEWFo7K6fX8hoYUwR3aIafOI6rtItLauaDCkGOucysJtrVZy+sHffioGzMsOU64JFDSyPQgrXujegcOHFRXHhD4fOUuBXSvV+OZ8JhSPTGWaRcQcoiGX4pT5hlebLddOl59b6sn6kU1ODQcEbhP83xVLZlaTWOrNrF5Wvy3TMXpH5gyl1tZEORxADAShMYyUbNR7XZYLEg1DfgIBHfIg3cKwdFt7KVLejFGKIiBYRAZDE2JuHItNmzJ2x9JgSK3E+XnShV5tuWpncnyFonJVHGEky/zRfUVLHobDMcJ/u9nlZqE8u47W+833F1WaIYuwNw=="