INSTALLATION.md in trackler-2.2.1.11

- old
+ new

@@ -1,12 +1,25 @@
\ No newline at end of file
+## Dart
+* [Install Dart](https://www.dartlang.org/install)
+* Add the Dart SDK to your path.
+* From a new command window, type `dart --version` to verify that Dart is now available.
+
+## Dart Plugin for your IDE or Editor
+* If you are using an IDE or an editor, [install and configure the Dart plugin](https://www.dartlang.org/tools).
+
+## Setting up Dart on your IDE
+* Setup the Dart SDK and Dartium by going in your IDE's settings and add the Dart SDK
+* Note: For HomeBrew Mac users the Dart SDK and Dartium locations are:
+  * SDK directory: HOMEBREW_INSTALL/dart/1.24.2/libexec
+  * Dartium: HOMEBREW_INSTALL/dart/1.24.2/Chromium.app