/// <summary>
		/// Validates a tool is installed.
		/// </summary>
		/// <param name="tool">Tool</param>
		/// <returns>true if it is, false if not.</returns>
		public static bool ValidateToolInstalled(BaseTool tool) {
			if (tool == null)
			{
				return false;
			}
			if (!tool.Installed) {
				ShowWarning(String.Format(CultureInfo.InvariantCulture, "{0} is not correctly installed or not found, check your preferences !", tool.GetName()));
				return false;
			}
			return true;
		}