new grid construction

Options: gutter, max. width and nr of columns
clean code
.gitignore
ignoored
ig
ignored
ignored
Merge branch 'master' of https://github.com/WartClaes/Base-HTML

Conflicts:
	.sass-cache/4082f6e928364f0aa6c1e81c04da44437f414f94/_helpers.scssc
	.sass-cache/4082f6e928364f0aa6c1e81c04da44437f414f94/_print.scssc
	.sass-cache/4a57301ac15ab3bfcfcfc12d90eb08cd9987f009/_grid.scssc
	.sass-cache/4a57301ac15ab3bfcfcfc12d90eb08cd9987f009/_normalize.scssc
	.sass-cache/4a57301ac15ab3bfcfcfc12d90eb08cd9987f009/_overrides.scssc
	index.html