Issue 6316: 	Improve usability of long (and wide) stack traces: file name on the left and other
Merge remote-tracking branch 'origin/master' into issue6291_master
Issue 6316: 	Improve usability of long (and wide) stack traces
FBTest: move firebug/2613 test into known-failures test list (bug 854139)
issue6291: dead-code deletion + precisions in comment about 54f95df
FBTest: create a new list for the test bot (without crashing tests, bug 854139)
Issue 6168: 	Update Firebug to use the new Private Browsing APIs
First check the new PB API (related to issue 6168)
It's better desing to put Cu.import()s at the top of the module (related to issue 6168)
issue6291: make FBTests for issues 5655 and 6116 work

Conflicts:
	extension/content/firebug/console/consoleExposed.js
	extension/content/firebug/debugger/debuggerTool.js
Merge remote-tracking branch 'origin/master' into issue6291_master
issue6291: do not print commands and window properties as closures
issue6291: fix FBTest for issue5873 after _FirebugCommandLine removal
issue6291: some comments + code reorganization
issue6291: fix Firebug-UI freezes on execution pause
issue6291: fix failure for issue 5033
issue6291_master: fix failure for issue 3645