Spreadsheets Update  0.1.5

- Greatly enhanced the usability and organization of the
spreadsheets/charts.

- Also updated most Height and Ore Generation values listed.

(Next I need to split the Ore Generation Charts into different files for
each Group/Type of Ore.)
Merge branch 'master' of https://github.com/destradious/Metallurgy-Ore-Generation

Conflicts:
	DOCUMENTS/Custom Metallurgy - Images.xls