Updated CHANGELOG to 0.22.0

bumps to 0.19.1

Updated CHANGELOG for v0.19.0

Updates to npm 4.6.1

Updates to request-light 0.2.1

Hides commands from the palette when not viewing a supported file pat…

…tern i.e. 'package.json'

bumps to 0.18.0-beta.2

Fixes git+https for github urls breaking all codelenses

Relates to #68

Bumps to 0.18.0-alpha.1