Use list.append() instead list.extend() for single element
adjust docs to match reality
Define `__file__`, when interpreting `buildbot.tac`.
Merge branch 'runner-__file__' into buildbot-0.8.8

Conflicts:
	master/buildbot/scripts/base.py
Fix usage of path_module in master-side repo step.
Move some dangling release notes.
Update release notes.
Merge v0.8.8 into master.

Conflicts:
	master/docs/relnotes/index.rst
web change hook: rename exception variable name

Use a more descriptive name of the cought instance of ValueError
exception. The generic 'err' was redefined as a local function
on line 81.

This fixes pylint error 'E0102 (function-redefined)' in this file.
DB Pool: avoid redefining local variable

Instead of redefining the 'log_msg' variable, assign it a new value
when verbose logging is requested.

This fixes pylint error 'E0102 (function-redefined)' in this file.
enable pylint 'E0102 (function-redefined)' check.
Merge branch 'fix-pylint-function-redefined' of git://github.com/elmirjagudin/buildbot
Merge branch 'minor' of git://github.com/vrutsky/buildbot