Update Main.cpp

Old content copied to Mandelbrot.h.

Now, renders 512x512 greyscale bitmap of mandelbrot "snowflake"! (see http://2.bp.blogspot.com/-19jH4yVk24c/U-JxiWIyNiI/AAAAAAAABHA/aZuw2l5qnQU/s320/M.bmp)
(with different power: z <-- z^7 + c instead of z <-- z^2 + c).
Based on powers 2, 3, 4, 5, 6, 7, 9, 27 it seems that 
/*************************************************
*** NUMBER OF LOBES = POWER - 1 ***
**************************************************/

Amazing! but _why_?