set minimum supported ember version at 2.18 (#700)

see community survey results - https://emberjs.com/ember-community-survey-2019/

.travis.yml

@@ -23,8 +23,6 @@ env:
   matrix:
     # we recommend new addons test the current and previous LTS
     # as well as latest stable release (bonus points to beta/canary)
-    - EMBER_TRY_SCENARIO=ember-lts-2.12
-    - EMBER_TRY_SCENARIO=ember-lts-2.16
     - EMBER_TRY_SCENARIO=ember-lts-2.18
     - EMBER_TRY_SCENARIO=ember-lts-3.4
     - EMBER_TRY_SCENARIO=ember-lts-3.8

README.md

@@ -7,7 +7,7 @@
   </a>
 </div>
 
-[![Ember Versions](https://img.shields.io/badge/Ember.js%20Versions-%5E2.12%20and%20%5E3.0-brightgreen.svg)](https://travis-ci.org/offirgolan/ember-light-table)
+[![Ember Versions](https://img.shields.io/badge/Ember.js%20Versions-%5E2.18%20and%20%5E3.0-brightgreen.svg)](https://travis-ci.org/offirgolan/ember-light-table)
 [![Build Status](https://travis-ci.org/offirgolan/ember-light-table.svg)](https://travis-ci.org/offirgolan/ember-light-table)
 [![npm version](https://badge.fury.io/js/ember-light-table.svg)](http://badge.fury.io/js/ember-light-table)
 [![Download Total](https://img.shields.io/npm/dt/ember-light-table.svg)](http://badge.fury.io/js/ember-light-table)
@@ -37,7 +37,7 @@ Compatibility
 ------------------------------------------------------------------------------
 
 * Ember.js v2.18 or above
-* Ember CLI v2.13 or above
+* Ember CLI v2.18 or above
 
 
 Installation

config/ember-try.js

@@ -11,22 +11,6 @@ module.exports = function() {
     return {
       useYarn: true,
       scenarios: [
-        {
-          name: 'ember-lts-2.12',
-          npm: {
-            devDependencies: {
-              'ember-source': '~2.12.0'
-            }
-          }
-        },
-        {
-          name: 'ember-lts-2.16',
-          npm: {
-            devDependencies: {
-              'ember-source': '~2.16.0'
-            }
-          }
-        },
         {
           name: 'ember-lts-2.18',
           npm: {

package.json

@@ -1,7 +1,7 @@
 {
   "name": "ember-light-table",
   "version": "2.0.0-beta.3",
-  "description": "Lightweight, component based table for Ember 2.x",
+  "description": "Lightweight, component based table for Ember 2.18+",
   "keywords": [
     "ember-addon",
     "table"
@@ -93,7 +93,7 @@
     "configPath": "tests/dummy/config",
     "demoURL": "http://offirgolan.github.io/ember-light-table",
     "versionCompatibility": {
-      "ember": ">=2.3.0 <4.0.0"
+      "ember": ">=2.18.0 <4.0.0"
     }
   }
 }