2.2.0 (2023-08-25)
 * Added functions:
  * Shell_copyTextToClipboard()
  * Shell_getClipboardText()
  * Shell_getDisplayDPI()
  * Shell_getDisplayRefreshRate()
  * Shell_getDisplayScaleFactor()
  * Shell_needsDisplay()
  * Shell_openFileDialogMultiple()
  * Shell_chooseFolderDialog()
  * Shell_executeOnMainThread()
  * Shell_getMouseDeltaMode()
  * Shell_getMousePosition()
  * Shell_getModifierKeys()
  * Shell_getButtonMask()
  * Shell_registerCustomCursor()
  * Shell_setDrawThrottleRate()
  * Shell_msleep()
  * Shell_preciseSleep()
  * Shell_mouseLeaveFunc()
  * Shell_moveWindow()
  * Shell_resizeWindow()
  * Shell_moveResizeWindow()
  * isModifierKey()
 * Added x and y arguments to scrollWheel callback
 * Added deltaX and deltaY arguments to mouseMoved and mouseDragged callbacks
 * Added buttonMask argument to mouseDown and mouseUp callbacks
 * Added referenceTime argument to all shell callback functions
 * Added modifiers argument to all mouse-related shell callback functions
 * Added lastModifiers argument to keyModifiersChanged callback function
 * Added captureDisplay argument to Shell_enterFullScreen()
 * Added SHELL_TIMER_INVALID constant
 * Added MODIFIER_PLATFORM_MENU_COMMAND_BIT to ShellKeyCodes.h
 * Added MOUSE_BUTTON_NUMBER_LEFT, MOUSE_BUTTON_NUMBER_RIGHT, and MOUSE_BUTTON_NUMBER_MIDDLE constants to ShellKeyCodes.h
 * Added ShellBatteryState_notCharging to ShellBatteryInfo.h
 * Renamed most constants in ShellKeyCodes.h, and removed several unused ones
 * File dialog functions now return string pointers owned by the shell, rather than writing into a caller-provided buffer
 * File dialog functions now accept a list of allowed file extensions to use as a filter
 * File dialog functions now take an initial window title argument
 * Shell_openFileDialog() now accepts an optional file name to be selected by default in the default directory

2.1.0 (2014-12-13)
 * Added vsync API. Call Shell_setVSync to specify whether to wait for vertical blank when swapping buffers.
 * Added Shell_getSafeWindowRect, an alternative to Shell_getDisplayBounds when used for window positioning.
 * Added Shell_systemBeep
 * Added file dialog API. Call Shell_openFileDialog to browse for files, and Shell_saveFileDialog to specify the path and name of a file to save.
 * Added Shell_confirmQuitFunc to allow quitting to be temporarily delayed if the user has unsaved work.
 * Added isRepeat boolean to Shell_keyDownFunc callback signature

2.0.0 (2014-10-17)
 * Target_* callbacks other than Target_init() are no longer directly linked. Instead, each one can be individually opted into by calling Shell_*Func() to register a callback for the event.
 * Target.h has been renamed to ShellCallbacks.h
 * Added multiple display support. See Shell_getDisplayCount(), Shell_getDisplayIndexFromWindow(), and Shell_getDisplayBounds(), which replaces Shell_getMainScreenSize().
 * Shell_setFullScreen() has been replaced by Shell_enterFullScreen() and Shell_exitFullScreen(), the former of which takes a display index.
 * Added scroll wheel event callbacks

1.2.0 (2014-01-20)
 * Added Shell_openURL()
 * Added C++ header guards

1.1.0 (2013-12-25)
 * Added Shell_getSupportPath()
 * Added typedef for ShellTimer

1.0.0 (2013-07-13)
 * Added thread API
 * Changed project structure to standard stem library rather than naked header files

Stable_2012-06-09
 * Added Shell_setMouseDeltaMode()
 * Made Shell_setCursorVisible(), Shell_hideCursorUntilMouseMoves(), and Shell_setCursor() part of the core shell API (previously were implemented by individual shells as extensions)

Stable_2012-02-04
 * Added Shell_setTimer and Shell_cancelTimer
 * Target_draw now returns a bool, and can opt not to swap buffers by returning false

Stable_2011-10-23
 * Target_keyUp() no longer receives charCode parameter
 * Added Shell_getMainScreenSize()

Stable_2011-07-04
 * Added key modifiers
 * Added background and foreground notifications

Stable_2010-05-18
 * Removed Target_getName()
 * Removed argc and argv from Target_init()

Stable_2010-03-31
 * Added documentation
 * Added battery info API
 * Added full screen mode

Stable_2009-11-24
 * Initial version