New header h2 structure

Added span and image for better handling of resize in responsive
Better structure modularazing stylesheets
Resize of mobile menu fitting to viewport's height
Header styles elimination of logo in sprite
Merge branch 'master' of https://github.com/alfabrad/minvielle_photography

Conflicts:
	Code/templates/sass/default-styles/_print_stylesheet.sass
	Code/templates/sass/main.sass
	assets/css/main.css.map
	config.codekit