refactor(datepicker): order config options

Closes #5222

src/datepicker/datepicker.js

@@ -3,23 +3,23 @@ angular.module('ui.bootstrap.datepicker', ['ui.bootstrap.dateparser', 'ui.bootst
 .value('$datepickerSuppressError', false)
 
 .constant('uibDatepickerConfig', {
+  datepickerMode: 'day',
   formatDay: 'dd',
   formatMonth: 'MMMM',
   formatYear: 'yyyy',
   formatDayHeader: 'EEE',
   formatDayTitle: 'MMMM yyyy',
   formatMonthTitle: 'yyyy',
-  datepickerMode: 'day',
-  minMode: 'day',
+  maxDate: null,
   maxMode: 'year',
+  minDate: null,
+  minMode: 'day',
+  ngModelOptions: {},
+  shortcutPropagation: false,
   showWeeks: true,
   startingDay: 0,
-  yearRows: 4,
   yearColumns: 5,
-  minDate: null,
-  maxDate: null,
-  shortcutPropagation: false,
-  ngModelOptions: {}
+  yearRows: 4
 })
 
 .controller('UibDatepickerController', ['$scope', '$attrs', '$parse', '$interpolate', '$log', 'dateFilter', 'uibDatepickerConfig', '$datepickerSuppressError', 'uibDateParser',
@@ -553,6 +553,12 @@ angular.module('ui.bootstrap.datepicker', ['ui.bootstrap.dateparser', 'ui.bootst
 })
 
 .constant('uibDatepickerPopupConfig', {
+  altInputFormats: [],
+  appendToBody: false,
+  clearText: 'Clear',
+  closeOnDateSelection: true,
+  closeText: 'Done',
+  currentText: 'Today',
   datepickerPopup: 'yyyy-MM-dd',
   datepickerPopupTemplateUrl: 'uib/template/datepicker/popup.html',
   datepickerTemplateUrl: 'uib/template/datepicker/datepicker.html',
@@ -561,14 +567,8 @@ angular.module('ui.bootstrap.datepicker', ['ui.bootstrap.dateparser', 'ui.bootst
     'datetime-local': 'yyyy-MM-ddTHH:mm:ss.sss',
     'month': 'yyyy-MM'
   },
-  currentText: 'Today',
-  clearText: 'Clear',
-  closeText: 'Done',
-  closeOnDateSelection: true,
-  appendToBody: false,
-  showButtonBar: true,
   onOpenFocus: true,
-  altInputFormats: []
+  showButtonBar: true
 })
 
 .controller('UibDatepickerPopupController', ['$scope', '$element', '$attrs', '$compile', '$parse', '$document', '$rootScope', '$uibPosition', 'dateFilter', 'uibDateParser', 'uibDatepickerPopupConfig', '$timeout', 'uibDatepickerConfig',