Clean up release scripts.

Clean up release scripts.

This makes some internal renaming, e.g. trunk -> candidates,
bleeding edge -> master, without changing the api.

Also remove some unused bailout steps from the push script.

Remove unused bump version script.

BUG=chromium:451975
TBR=tandrii@chromium.org
NOTRY=true
LOG=n

Committed: https://crrev.com/379dcd5bd4f3de23a5ab9107d90182b1bdc2e503
Cr-Commit-Position: refs/heads/master@{#26269}

[Michael Achenbach, 2015-01-26 13:20:33]

machenbach@chromium.org changed reviewers:
+ tandrii@chromium.org

[Michael Achenbach, 2015-01-26 13:23:36]

PTAL

[Michael Achenbach, 2015-01-26 13:28:19]

The CQ bit was checked by machenbach@chromium.org

[commit-bot: I haz the power, 2015-01-26 13:29:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/873213002/1

[commit-bot: I haz the power, 2015-01-26 13:29:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-26 13:29:40]

Patchset 1 (id:??) landed as
https://crrev.com/379dcd5bd4f3de23a5ab9107d90182b1bdc2e503
Cr-Commit-Position: refs/heads/master@{#26269}

[tandrii(chromium), 2015-01-26 14:31:14]

Yay, difficult review; relying on coverage more than my eyes.

lgtm

https://codereview.chromium.org/873213002/diff/1/tools/push-to-trunk/releases.py
File tools/push-to-trunk/releases.py (right):

https://codereview.chromium.org/873213002/diff/1/tools/push-to-trunk/releases...
tools/push-to-trunk/releases.py:173: "bleeding_edge": master_position,
i guess, this key can't be changed :(