Deltas and supporting impls for delta UI
delta reviewers
clarify build create Force option doc
support pagination in deltas
add helpers for determining what happened to DeltaDef, and use 'deleted'
not 'removed'
UnmarshalIssueSpec
Merge pull request #3 from sourcegraph/deltas

Deltas
PullRequestSrcbotNotification to PersonSettings
Add comment
PullRequestSrcbotNotification -> SrcbotPullRequest
Remove 'Notification' from BuildConfig