Re-land "[dev-util] Add symbolicate_dump endpoint to dev server"

This reverts commit 50fe427cb8cebf7dca441e92463c407cb90fddf3.

Add an endpoint to the dev server that will symbolicate a minidump.

BUG=chromium-os:29850
TEST=unit
TEST=run dev server, use curl to make it download some artifacts; check to
TEST=see that debug symbols are staged in static/archive
TEST=once symbols are staged, run the dev server in your
TEST=chroot and use curl with a minidump file like this:
TEST=  curl -F minidump=@/home/cmasone/chromeos/phooey/powerd.20120424.141235.1005.dmp http://localhost:8080/symbolicate_dump

Change-Id: Ib9c11afd780aea5a665358b43f03a210ecc83482
Reviewed-on: https://gerrit.chromium.org/gerrit/21541
Tested-by: Chris Masone <[email protected]>
Reviewed-by: Scott Zawalski <[email protected]>
Tested-by: Scott Zawalski <[email protected]>
Commit-Ready: Scott Zawalski <[email protected]>
6 files changed