This adds a new console.html summary and details view that can
gives overview information about console output, organizes output
by section, and can also determine the currently running script at
job failure time. The console viewer is a CodeMirror-based widget
that provides basic highlighting and folding capabilities to make
console output easier to browse.
Change-Id: I27a9a532ae117d2914dc2f3a866c780378e79f72
