chore: Remove support for angular below 1.4

Removes all tests and references to support
for angular versions below 1.4

BREAKING CHANGE:
UI Grid is no longer compatible with
angular versions below 1.4

DEVELOPER.md

@@ -22,7 +22,7 @@ http://localhost:9003/docs/#/tutorial to browse each tutorial.
 <br/> fast - alias for --no-e2e --core --angular=1.3.6
 
 ```
-grunt dev --no-e2e --angular=1.3.16
+grunt dev --no-e2e --angular=1.5.0
 ```
 
 # Code Structure

Gruntfile.js

@@ -9,7 +9,7 @@ var util = require('./lib/grunt/utils.js');
 /*global module:false*/
 module.exports = function(grunt) {
   require('time-grunt')(grunt);
-  
+
   // use load-grunt-config to load config settings for each individual task from grunt/
   require('load-grunt-config')(grunt, {
     // use jitGrunt to automatically load the grunt tasks that we have defined in our package.json
@@ -36,6 +36,8 @@ module.exports = function(grunt) {
       pkg: grunt.file.readJSON('package.json'),
       version: util.getVersion(),
       stable_version: util.getStableVersion(),
+      latestAngular: util.latestAngular(),
+      angularTestVersions: util.angulars(),
       dist: 'dist',
       site: process.env.TRAVIS ? 'ui-grid.info' : '127.0.0.1:<%= connect.docs.options.port %>',
       banner: '/*!\n' +
@@ -47,7 +49,7 @@ module.exports = function(grunt) {
     }
 
   });
-  
+
   util.updateConfig();
 
   grunt.loadTasks('lib/grunt');

grunt/ngdocs.js

@@ -18,16 +18,16 @@ module.exports = {
     },
     scripts: [
        // no jquery automatically loaded for tutorial!!!
-      '//ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular.js',
-      '//ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular-touch.js',
-      '//ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular-animate.js',
+      '//ajax.googleapis.com/ajax/libs/angularjs/<%= latestAngular %>/angular.js',
+      '//ajax.googleapis.com/ajax/libs/angularjs/<%= latestAngular %>/angular-touch.js',
+      '//ajax.googleapis.com/ajax/libs/angularjs/<%= latestAngular %>/angular-animate.js',
       'bower_components/csv-js/csv.js',
       'bower_components/pdfmake/build/pdfmake.js',
       'bower_components/pdfmake/build/vfs_fonts.js'
     ],
     hiddenScripts: [
-      '//ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular-animate.js',
-      '//ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular-aria.js',
+      '//ajax.googleapis.com/ajax/libs/angularjs/<%= latestAngular %>/angular-animate.js',
+      '//ajax.googleapis.com/ajax/libs/angularjs/<%= latestAngular %>/angular-aria.js',
       'bower_components/google-code-prettify/src/prettify.js',
       'node_modules/marked/lib/marked.js'
     ],

lib/grunt/plugins.js

@@ -316,7 +316,7 @@ module.exports = function(grunt) {
       'main': releaseFiles,
       'ignore': [],
       'dependencies': {
-        'angular': '>=1.2.16 1.4.x'
+        'angular': '>=1.4.0 1.5.x'
       },
       'repository': pkg.repository,
       'homepage': 'http://ui-grid.info',