Gradient navigation

Adds smooth linear gradients to navigation bar
Changed wording
Merge pull request #1 from Zaexu/Gradients

Gradient navigation
Fix gradient alpha and non-used css3 standard
Fix CSS weirdness
Merge branch 'Gradients' of https://github.com/Zaexu/SlashGeeSlashOS.github.io into Zaexu-Gradients

Conflicts:
	media/css/styles.css
merge