Start adding support for hotkeys to switch tabs.
Continue adding support for hotkeys to switch tabs.
Merge branch 'release/1.71' into feature/hotkeys
Merge branch 'develop' into feature/hotkeys

Conflicts:
	CHANGELOG.TXT
Change namespace of HotkeyControl.
Merge branch 'develop' into feature/hotkeys

Conflicts:
	CHANGELOG.TXT
Code cleanup.
Code cleanup.
Improve options dialog. Start implementing keyboard options page.
Set AcceptButton for options dialog.
Improve control focus behavior of options dialog.
Create KeyboardShortcuts class to manage keyboard shortcuts.
Continue implementing keyboard options page.
Add feature MR-16 - Add keyboard shortcuts to switch between tabs

Add feature MR-557 - Add Hotkeys to Tabs / Subtabs