tree 5dc08cbcd009f4e6965ce631866e21da0fd0d50f
parent c2f814be8520267b358f6159c2cae68f10714b0f
author Adam Sadovsky <asadovsky@gmail.com> 1456452493 -0800
committer Adam Sadovsky <asadovsky@gmail.com> 1456452493 -0800

browser: gosh: switch from Logf/Fatalf to TB, and related

This change makes most of the changes described in the final
proposal in https://v.io/i/1128 - namely, it makes all the
requisite API changes.

Things not done in this change:
- "Good PC" logging
- Printing Cmd stdout/stderr on failure

Those will be done in subsequent changes.

MultiPart: 6/9
Change-Id: I87c5c6882ef649348bdd8b4b6454c5d1154f9990