diff --git a/.codeclimate.yml b/.codeclimate.yml
new file mode 100644
index 00000000..abd4ff1c
--- /dev/null
+++ b/.codeclimate.yml
@@ -0,0 +1,26 @@
+languages:
+  JavaScript: true
+engines:
+  eslint:
+    enabled: true
+  csslint:
+    enabled: true
+  markdownlint:
+    enabled: true
+  duplication:
+    enabled: true
+    config:
+      languages:
+        javascript:
+          mass_threshold: 300
+  fixme :
+    enabled: true
+ratings:
+  paths:
+  - "**/*.js"
+  - "**/*.css"
+  - "**/*.md"
+exclude_paths:
+  - "dist/**/*"
+  - "docs/**/*"
+  - "examples/**/*"
diff --git a/.csslintrc b/.csslintrc
new file mode 100644
index 00000000..2b014c6a
--- /dev/null
+++ b/.csslintrc
@@ -0,0 +1,6 @@
+{
+  "adjoining-classes": false,
+  "box-model": false,
+  "box-sizing": false,
+  "order-alphabetical": false
+}
diff --git a/.eslintrc b/.eslintrc
new file mode 100644
index 00000000..00d60a6e
--- /dev/null
+++ b/.eslintrc
@@ -0,0 +1,6 @@
+{
+  "rules": {
+    "complexity": [2, 50],
+    "max-statements": [2, 100]
+  }
+}
diff --git a/.mdlrc b/.mdlrc
new file mode 100644
index 00000000..bb5535c3
--- /dev/null
+++ b/.mdlrc
@@ -0,0 +1,7 @@
+// Markdown Lint Rules
+// https://github.com/mivok/markdownlint/blob/master/docs/RULES.md
+
+rules
+  "~MD012", // alert on multiple consecutive blank lines
+  "~MD013", // line length should be no more than 80 characters
+  "~MD014", // Dollar signs used before commands without showing output
diff --git a/HISTORY.md b/HISTORY.md
index 0b7bad0d..e588235e 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -14,7 +14,7 @@ http://visjs.org
 - Fixed #2170: Improved the contribution docs (#1991, #2158, #2178, #2183, #2213, #2218, #2219)
 - Implemented #1969: generate individual css files for network and timeline (#1970)
 - Cleanup bower.json (#1968)
-- Removed feature-request page from website (TODO)
+- Fixed #2114: Removed feature-request page from website
 - Distinguish better between `devDependencies` and `dependencies` (#1967)
 - Typos and minor docs improvements (#1958, #2028, #2050, #2093, #2222, #2223, #2224)
 - Replaced `gulp-minify-css` with `gulp-clean-css` (#1953)
@@ -266,7 +266,7 @@ http://visjs.org
 ### General
 
 - Fixed #1353: Custom bundling with browserify requiring manual installation
-  of `babelify`.  
+  of `babelify`.
 
 ### Network
 
@@ -451,7 +451,7 @@ http://visjs.org
 - Fixed #1033: Moved item data not updated in DataSet when using an asynchronous
   `onMove` handler.
 - Fixed #239: Do not zoom/move the window when the mouse is on the left panel
-  with group labels.   
+  with group labels.
 
 
 ## 2015-07-03, version 4.4.0