Merge branch 'master' of https://github.com/IgniteUI/igniteui-angular into PMiteva/time-picker-ref

# Conflicts:
#	projects/igniteui-angular/src/lib/time-picker/time-picker.common.ts
#	projects/igniteui-angular/src/lib/time-picker/time-picker.component.ts

Author: PlamenaMiteva

CHANGELOG.md

@@ -7,12 +7,40 @@ All notable changes for each version of this project will be documented in this
 ### General
 - `IgxGrid`, `IgxTreeGrid`, `IgxHierarchicalGrid`
     - **Breaking Change** - The `locale` and `pipeArgs` parameters are removed from the `operate` method exposed by the `IgxNumberSummaryOperand`, `IgxDateSummaryOperand`, `IgxCurrencySummaryOperand` and `IgxPercentSummaryOperand`. They are now set in the `igx-grid-summary-cell` template. To change the locale and format setting of the `igx-grid-summary-cell` the user can use the new `summaryFormatter` property of the `IgxColumnComponent`.
+    - **Breaking Change** - `IgxGrid`, `IgxTreeGrid`, `IgxHierarchicalGrid` events are renamed as follows:
+        - `onScroll` -> `gridScroll`
+        - `onSelection` -> `selected`
+        - `onRowSelectionChange` -> `rowSelected`
+        - `onColumnSelectionChange` -> `columnSelected`
+        - `onColumnPinning` -> `columnPin`
+        - `onColumnInit` -> `columnInit`
+        - `onSortingDone` -> `sortingDone`
+        - `onFilteringDone` -> `filteringDone`
+        - `onPagingDone` -> `pagingDone`
+        - `onRowAdded` -> `rowAdded`
+        - `onRowDeleted` -> `rowDeleted`
+        - `onColumnResized` -> `columnResized`
+        - `onContextMenu` -> `contextMenu`
+        - `onDoubleClick` -> `doubleClick`
+        - `onColumnVisibilityChanged` -> `columnVisibilityChanged`
+        - `onColumnMovingStart` -> `columnMovingStart`
+        - `onColumnMoving` -> `columnMoving`
+        - `onColumnMovingEnd` -> `columnMovingEnd`
+        - `onGridKeydown` -> `gridKeydown`
+        - `onRowDragStart` -> `rowDragStart`
+        - `onRowDragEnd` -> `rowDragEnd`
+        - `onGridCopy` -> `gridCopy`
+        - `onRowToggle` -> `rowToggle`
+        - `onRowPinning` -> `rowPinning`
+        - `onToolbarExporting` -> `toolbarExporting`
+        - `onRangeSelection` -> `rangeSelected`
     - `IgxGridRowComponent`, `IgxGridGroupByRowComponent`, `IgxTreeGridRowComponent`, `IgxHierarchicalRowComponent` are no longer exposed in the public API. Automatic migration will change these imports with `RowType`.
     - **Behavioral changes**
     - `getRowByIndex`, `getRowByKey`, `cell.row` now return an object implemening the `RowType` interface.
     - `dragData` emitted with `IRowDragEndEventArgs`, `IRowDragStartEventArgs` is now `RowType`
     - `IRowDragEndEventArgs`, `IRowDragStartEventArgs` now emit `dragElement`, which holds the dragged row html element.
     - `row` in `IPinRowEventArgs` is now `RowType`
+- `IgxTabs`, `IgxBottomNav`
     - **Breaking Change** - `IgxTabs` and `IgxBottomNav` components were completely refactored in order to provide more flexible and descriptive way to define tab headers and contents. Please make sure to update via `ng update` in order to migrate the existing `igx-tabs` and `igx-bottom-nav` definitions to the new ones.
 - `IgxForOfDirective`
     - **Breaking Change** - `IgxForOfDirective` events are renamed as follows: