Merge pull request #2379 from bootstraponline/master

Update docs for Slate
Allow spaces in Appium folder
Fixed #2393 Wrong link in finding-elements.md.
Updated swipe gesture arguments.
Merge pull request #2394 from deadmoto/issue-2393

issue-2393
Fix link

See https://github.com/appium/appium/blob/1.0-beta/docs/en/how-to-write-docs.md
Merge pull request #2385 from rgonalo/spaces

Allow spaces in Appium folder
fix async bug (fix #2382)
fix latent javascript replace-with-'' bug
changelog and bump to 0.18.2 for publish
Remove jekyll header from readme

It confuses Slate