Update node-sass to version 3.7.0 🚀

Hello :wave:

:rocket::rocket::rocket:

node-sass just published its new version 3.7.0, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of node-sass – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

GitHub Release

Node.js 6 support

You've asked, and asked, and asked... and here it is. It took a little longer than we'd hoped due a bug we discovered in Node.js 6 which broken our Windows builds.

Previous versions of Node Sass worked fine with Node.js 6 but produced scary looking warnings the console.

Work around Node.js 6 bug in Windows CI (@saper, #1514)
Remove scary Node.js 6 console warnings (@xzyfer, #1484)
Update NAN to at least 2.3.2 (@xzyfer, #1496)

Update proxy support

Currently to detect user local settings, when downloading the precompiled binaries, we use a deprecated package. We've replaced this packaged with the offical npm environment variables. This drastically simplifies our install script.

Big thanks to @delitescere! (#1333)

Fixes

Drastically simply we switch Node versions in Travis (@xzyfer, #1500)
Better error message when installing on an unsupported environments (@nschonni @xzyfer, #1487 #1491)
Update TODO URL in install error (@nschonni, #1488)
Add Node.js 6 to CI (@nschonni, #1486)

Support Environments

OS	Node
Windows x86 & x64	0.10, 0.12, 1, 2, 3, 4, 5, 6
OSX x64	0.10, 0.12, 1, 2, 3, 4, 5, 6
Linux x86 & x64	0.10, 0.12, 1, 2, 3, 4, 5, 6

*Linux support refers to Ubuntu, Debian, and CentOS 5

The new version differs by 16 commits .

9938557 v3.7.0
ca05f39 Attempt to fix AppVeyor tag race condition (#1519)
6027012 v3.7.0
e1250eb Add Node 6 config to Travis (#1517)
15fe42e Node 6 with AppVeyor: don't use subst for testing (#1514)
0bc5da4 Simplify Node versions in Travis Ci (#1500)
b850684 Replace deprecated npmconf package. (#1492)
ff17933 Fix final Node 6 deprecation warnings (#1498)
b0e1e1b Add Node 6 as a supported runtime (#1499)
9c71aef Update NAN to at least 2.3.2 (#1496)
9de9a47 Remove .only in tests
c56f4a1 Add supported node versions to readme
b527e60 Improve error message for unsupported environments (#1491)
e232674 Replace TODO URL with release tab for supported versions (#1488)
a405400 v3.6.0

There are 16 commits in total. See the full diff.

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Munter / tolk