AUI-1549 Error in widget-modality.js

Currently, if a modal is showed on a page where the scrollbar is not at the top, it will scroll the page to the top and show up there instead of at the place where it was triggered.

This is because we're using WidgetModality together with WidgetPositionAlign. WidgetModality focuses the modal when it becomes visible, but it does so before WidgetPositionAlign positions it on the viewport, so the window gets scrolled to the top and only then the modal is positioned.

This is fixing the issue by just changing the order of the modal augmentations, putting WidgetModality at the bottom, so it only focuses the modal when it's ready and correctly positioned on the viewport.
AUI-1055 Source Formatting
AUI-1585 aui-form-validator error breaks radio button layout
AUI-1557 Create unit test for nl2br
AUI-1557 - Source formatting
AUI-1556 Create unit test for escapeRegEx
AUI-1556 - Source formatting
AUI-1618 - AUI DataType.DateMath : Update method name in documentation

Fix for https://issues.liferay.com/browse/AUI-1618
AUI-1622 Fix aui-base unit test for ie8

The unit test was using indexOf, which doesn't work for ie8. Also, it was adding a comma at the end of an array, which causes it tu receive an extra element with value `undefined`. Removed that too and the test now also passes for ie8.
AUI-1489 aui-node HISTORY.md

Subtask of AUI-1458: Update HISTORY.md to reflect source code changes.
Titles for each entry are from the corresponding jira ticket.
AUI-1489 aui-node HISTORY.md

Added the aui version number for the entries in the HISTORY.md file
and sorted the entries in descending order
AUI-1489 - Source formatting
AUI-1489 Source formatting
AUI-1482 aui-form-builder HISTORY.md

Subtask of AUI-1458: Update HISTORY.md to reflect source code changes.
Titles for each entry are from the corresponding jira ticket.
AUI-1482 aui-form-builder HISTORY.md

Added the aui version number for the entries in the HISTORY.md file
and sorted the entries in descending order
AUI-1482 - Source formatting
AUI-1555 Create unit test for endsWith
AUI-1555 - Source formatting
AUI-1559 Create unit test for pluralize
AUI-1559 - Source formatting