Add GA event tracking for saving the first scratch block for a document and for adding images on save.
Add GA event tracking for saving the first scratch block for a document and for adding images on save.

CenturyLinkLabs/lorry-ui,patocox/lorry-ui,patocox/lorry-ui,CenturyLinkLabs/lorry-ui,rupakg/lorry-ui,rupakg/lorry-ui,patocox/lorry-ui,CenturyLinkLabs/lorry-ui,rupakg/lorry-ui