v2.2.0

• adds nvm
• adds reporter for download activity
• adds leaf node array functionality with test and docs
• updates nodeType docs
• reorganizes docs

v2.0.0

A breaking change release for anyone using < Gatsby 2.2.0. This release changes the node file and image mapping to use createResolvers instead of mutating a file node after createNode. This is aligning with new and upcoming Gatsby best internal practices.