Minor spacing error causing "file" to read as "f ile". Fixed.

Use the last stable nvm, not the master version

The nvm version from master is unsupported and may be broken. Using a tag
is advised.

CI: Build for node 5.x

Added a test for #1219

The previous file should be the absolute path, not the string used to import it.

fix to allow node-sass to pipe content with embedded sourcemap to other tools

making sass logo size more appropriate

Bump LibSass to 3.3.1

Bump LibSass to 3.3.0

Bump LibSass to 3.3.0-beta3

Fix a typo "repsonse" to "response".

Fixed typo "Sepcial" to "Special" in "// only one of them is required, see section Special Behaviours" (line 319 in examples section) in README.md.

Add --follow option to the CLI

Use sass binary url from .npmrc if available

For pull requests and pushes to master just build 32-bit binaries
and do not store artifacts.

Whenever a tag is pushed to the "release" branch - produce
full set of 32-bit and 64-bit binaries, create a GitHub
release (if does not exist already) and attach the binaries
to the release.

Issue open:

http://bit.ly/twoBuilds

 AppVeyor starts two builds in response to the "new commit"
 and "new tag" events.

Import libsass 3.3 code

- New source layout
- New header names for #include
- No need for exception handling in pure C code