updates config variables. conditionally show analytics scrips when values are supplied
fixed color-blending multiply example.
function reference navigation: added missing, removed duplicates
Merge pull request #43 from seven-phases-max/minor-updates

Function Reference minor updates
Attempt to clean up `Parent Selectors`, removed somewhat duplicated section/example (already in `Nested Rules`), minor reformatting in both files.
Added `Named Parameters` section, #44.
`Named Parameters`: extended example.
Merge pull request #48 from seven-phases-max/master

Minor clean up and reformatting in `Parent Selectors` and `Nested Rules`.
Merge pull request #49 from seven-phases-max/named-parameters

Documents "Named Parameters".
about/ports: Added [less.php](https://github.com/oyejorge/less.php)
functions: Color Blending, updated examples for `softlight`to sync with https://github.com/less/less.js/pull/1704
functions: Color Blending, fixed text colors for `softlight`examples
about/ports: updated less.php link
Merge pull request #51 from seven-phases-max/anonymous-update

Updated 'Color Blending' examples, added "less.php" compiler.
Added stub for features/"Comments"
usage/options: quick and dirty update, still need a lot of work.
Merge pull request #53 from seven-phases-max/master

Added features/comments, updated usage/options
GUI-compilers-that-use-LESS.js.md: fixed some screenshot links.
usage/Editors-and-Plugins.md: added some new, updated a few old links
usage/Editors-and-Plugins.md: a few more fixes