[#38] Add node 10/12 windows builds (#41)
* [#38] add node 12 windows build
* [#38] upgrade yarn to 1.22.0
* [#38] try installing NVS in before_install
* [#38] move nvs into maybe-install-node.sh and disable non windows build jobs for now
* [#38] fix .travis.yml
* [#38] use nvs 1.5.4
* [#38] build only windows for now
* [#38] use TRAVIS_NODE_VERSION for nvs
* [#38] add os: win32 to package.json
* [#38] add win32 to rustup
* [#38] exec node-pre-gyp from the cwd
* [#38] fix typo
* [#38] re-enable Linux - Node 10 build
* [#38] exec node-pre-gyp from TLD
* [#38] try ./node_modules again
* Early exist windows testing
* Use fully qualified path to pre-gyp binary
* Remove windows test build script
* Try to stop Windows builds from hanging
* Re-enable all build combinations
* [#38] only install msvc rust target if on windows; clean up
* [#38] only install msvc rust target if on windows attempt 2
* [#38] only install msvc rust target if on windows (attempt 3)
* [#38] update version to 0.7.1; update README
* Remove old commented out line in build file
Co-authored-by: Ernie Turner <ernie.turner@gmail.com>
