*******************************************************************************
* RECENT CHANGES
*******************************************************************************

=== 1.0.8 ===
* Fixed invalid tk::TF_VERTICAL tether flag value.
* Added possibility to hide check/radio box for unchecked tk::MenuItem objects.
* Added SLOT_BEGIN_EDIT and SLOT_END_EDIT slot events.
* Fixed improper value calculation in cycling knob when clicking on the knob's scale.
* Added support of SLOT_BEGIN_EDIT and SLOT_END_EDIT by tk::Knob, tk::Fader,
  tk::ScrollBar, tk::GraphDot and tk::GraphMarker widgets.
* Added support of named widget groups.
* Added tk::Widget::has_parent method.
* Changed checkbox/radio button space allocation algorithm for Menu and MenuItem.
* Updated dependencies file.
* Added test build for Windows using MSYS2.
* Added missing tk::Grid::remove_all() method implementation.
* Updated build scripts.
* Updated module versions in dependencies.

=== 1.0.7 ===
* Added possibility to enable/disable Knob's scale actions.

=== 1.0.6 ===
* Added stretch and loop markers to the AudioChannel and AudioSample widgets.
* Added tk::Tab and tk::TabControl widgets.
* Additional functions to work with coordinates provided in the tk::Graph: xy_to_axis, axis_to_xy.
* Improved widget tk::Grid space allocation algorithm that eliminates rows/columns which contain
  widgets that share space across other rows/columns. 
* Added support of cusom file preview embedding into tk::FileDialog widget.
* Fixed problems with scrolling of the tk::ListBox.
* Fixed operations on undefined values in tk::CheckBox and tk::RadioButton.
* Updated build scripts.

=== 1.0.5 ===
* Updated build scripts.

=== 1.0.4 ===
* Added support of Windows operating system.
* Added support of modern C++ 11 standard and above.
* Updated build scripts.
* Added more formats for URLSink (Windows support).
* Fixed bug in ListBox widget that could result in memory corruption.
* Migrated from popup window arrangement paradigm to the tether paradigm.
* Added volume listing to the tk::FileDialog.
* Added element hovering for ListBox widget and derived ComboBox and ComboGroup widgets.

=== 1.0.3 ===
* Added Window::has_parent() method to check that window is embedded into another window.
* Added Display::enum_monitors() method to query current state of connected monitors.
* Added xrandr library dependency for the X.11-compatible systems.
* Updated window appearance algorithm.
* Added ipadding() property to the tk::Label widget.
* Updated build scripts.

=== 1.0.2 ===
* Added template get() method for the tk::Registry that allows to obtain widget of specific type.
* Updated key event handling algorithm in the tk::Window class.
* Added FileDialog::Search style for the 'Search' edit control.
* Changed the space allocation algorithm for the edit control (now border gap does not depend
  on border size).
* Renamed public method for prop::String from 'commit' to 'commit_value'.
* Fixed bug that could cause improper window sizing in several cases.

=== 1.0.1 ===
* Updated build scripts.

=== 1.0.0 ===
* Bugfixes for the tk::GraphDot widget.
* Added new Display::wait_events() method for polling display for incoming events.
* Updated rendering of tk::LedMeterChannel widget.
* Fixed NULL dereference when linking styles in the schema.
* Refactoring of widget rendering, allmost all usages of Color::scale_lightness
  replaced with Color::scale_lch_luminance.
* Added 'reduce' options to prop::Allocation property.
* Added 'reduce' options handling by tk::Box and tk::Grid widgets.
* Fixed bug in prop::StringList which could yield to ignore of localization parameters.
* Added support of CIE XYZ D65, CIE LAB D65, CIE LCH D65 and CMYK color schemes for tk::Color property.
* Implemented tk::Schema::add methods for adding custom styles at the initialization stage.
* Fixed bug in clipboard paste for tk::TextDataSink class.
* Updated brightness control for LED channels grouped into LED meters.
* Added border radius support to the tk::Menu widget.
* Fixed prolbem with scrollbar sync for the tk::ListBox widget.

=== 0.5.1 ===
* Updated code to match lltl library headers.
* Better integration with system::follow_url() routine.
* Added automatic style creation from XML schema.
* Added simple language configuration support by the tk::Schema class.
* Fixed allocation for invisible widgets inside the tk::Grid container.
* Updated behaviour of TextDataSink to be more memory-effective.
* Property 'size_constraints' renamed to 'constraints' for tk::Align and tk::Group widgets.
* Added 'set_horizontal' and 'set_vertical' methods to the embedding property.
* Fixed crash on empty tk::Grid container, added constraints() property to the tk::Grid widget.
* Added parse() method to all enumeration properties.
* Fixed knob behaviour which didn't trigger SLOT_CHANGE event when dragging knob's scale.
* Added ipadding() property for internal padding of the tk::Group widget.
* Fixed bugs reladed to SLOT_CHANGE notification delivery for tk::Switch widget.
* Added drawing mode for the widget that allows to switch between different kinds of widget look.
* Added basic background color inheritance support to widgets.
* Rendering of graph widget has been fixed and enhanced with "border.flat" property.
* Replaced text_border property for tk::Group widget with text_padding property.
* Added heading property for tk::Group widget.
* Replaced text_border property for tk::ComboGroup widget with text_padding property.
* Added heading property for tk::ComboGroup widget.
* Fixed missing builtin styles for tk::ComboGroup widget.
* Added spin_spacing property to tk::ComboGroup widget.
* Added 'balance_color', 'balance_color_custom', 'flat' and 'scale_marks' properties to the tk::Knob widget.
* Added font scaling feature to the tk::Font property.
* Added freetype2 library dependencies for UNIX-compatible operating systems.
* Added possibility to specify custom fonts in the stylesheet data.
* Added font loading support by the tk::Schema object.
* Fixed bug in menu item allocation that could yield to ugly-looking menus.
* Implemented proper UI schema loading at the runtime.
* Added tk::Registry class for managing widgets.
* Denied copy constructor usage for all widget classes.
* Added tk::Bevel widget which allows to draw bevels/facets in the UI.
* Added tk::Arrangement property which allows to arrange some element inside of another.
* Indicator now supports modern-style drawing.
* Added tk::MultiLabel widget for drawing vector glyphs.
* Added tk::TextAdjust property and support of this property by several widgets.
* Added support of hovers by the tk::Label widget.
* Fixed bug with UIE_MOUSE_IN and UIE_MOUSE_OUT event delivery when entering/leaving window.
* tk::Button now allows to use different colors for different states.
* Removed obsolete tk::StyleInitializer class.
* Fixed memory corruption in tk::Grid widget related to invalid cell pointers after reallocation of memory chunk.
* Additional feature added to ComboGroup that allows to select the active visible widget.
* Updated build system.

=== 0.5.0 ===
* Initial release.

