Added Ecoining Pool Guide and some minor updates
	new file:   img/mining7.png Ecoining Pic
	new file:   img/mining8.png Ecoining Pic
	new file:   img/mining9.png Ecoining Pic
	modified:   mining.php Added Ecoining Guide
Merge pull request #202 from mrbickle/master

Added Ecoining Pool Guide and some minor updates