Changed classes:

Vintasoft.Twain.AcquiredImage
Added methods
	public System.Drawing.Bitmap GetThumbnail(int, int)	Returns a thumbnail image as System.Drawing.Bitmap object.
	public string GetThumbnailAsBase64String(int, int)	Returns a thumbnail image as Base64 string.

Vintasoft.Twain.DeviceManager
Added properties
	public bool TopMostUiWindow { get; set; }	Gets or sets a value indicating whether the TWAIN device UI window must be shown as a top most window.

API changes in Vintasoft.WpfTwain.dll

Changed classes:

Vintasoft.WpfTwain.DeviceManager
Added properties
	public bool TopMostUiWindow { get; set; }	Gets or sets a value indicating whether the TWAIN device UI window must be shown as a top most window.