Merge pull request #3625 from kevinburke/typos

Fix typos in CONTRIBUTING document
add gist-embed v1.9, close #3622
remove package.json in gist-embed v1.8 because we don't serve it
update node_modules
ignore npm install in travis CI
add jquery.swipebox v1.2.9 - again without error

Pulled from https://brutaldesign.github.io/swipebox/
(https://github.com/brutaldesign/swipebox)

Again without error https://github.com/cdnjs/cdnjs/pull/3598
Merge pull request #3626 from LeoWinterDE/master

add jquery.swipebox v1.2.9 - again without error
add rxjs v2.2.21
add rxjs v2.2.22
add rxjs v2.3.0
npm auto-update for rxjs
add menu in CONTRIBUTING.md
update menu in CONTRIBUTING.md
add speakingurl v0.10.0
feat(libs): add angular-filter v0.1.1 [author]
Merge pull request #3628 from a8m/master

add angular-filter to lib
add minified files for foundation v5.3.1
add jquery.photocols v1.0.3
add elasticsearch v2.3.1
add ink v3.0.5