Updated lists of online compilers/IDEs/playgrounds: 'Tools.md'
Added Iranian translation link (https://github.com/less/lesscss.org/issues/112)
Merge pull request #75 from seven-phases-max/master

Iranian translation link.
Merge pull request #74 from seven-phases-max/online-compilers-and-ides

List of online compilers/IDEs/playgrounds.
initial hack around on usage
Merge branch 'master' of https://github.com/less/less-docs

Conflicts:
	content/usage/Installing-LESS.md
finished basic structure of usage page
minor fixes for usage page: added missing 'online web ides' menu, changed 'LESS' and 'less' to 'Less' where applicable.
Merge pull request #78 from seven-phases-max/master

Minor fixes for usage page.
minor fixes for usage page: fixed 'GUIs for Less' menu link
Add cloudhead to the team
fix the size of the team github buttons
initial attempt to structurize and categorize features page.
Merge pull request #79 from seven-phases-max/features-structurized-and-categorized

Features, structurized and categorized (navigation)
Update variables.md

darken function name
Merge pull request #82 from wareczek/patch-1

Update variables.md
Fix ico
up less.js version to 1.6.1
add in a less logo to the header
Correct the footer links