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Had some problems with PuSH and Salmon use of Bookmarks; they were
being required to generate Atom versions of the bookmark _before_ the bookmark was saved.

So, I reversed the order of how things are saved, and associate notices and bookmarks
by URI rather than notice_id.

Conflicts:
	lib/activityobject.php

This reverts commit 3e82000d.

* avoid PHP notice from using wrong variable
* show a visible error instead of blank screen if no file submitted with restore form
* avoid PHP strict warning from using calling "non-static" DOMDocument::loadXML statically
* suppress PHP warning from XML parse errors

http://translatewiki.net/wiki/StatusNet:Cb5746be52330331844dea750bf452c0618aecb3-All_Rights_Reserved/pt-br

http://translatewiki.net/wiki/StatusNet:08b929b29496be84ff75d266b5e60b426cff449f-Hey,_1$s._Someone_just_entered/ca

Override the bookmarklet help page to add a new popup.

Conflicts:
	plugins/OStatus/classes/FeedSub.php

Slightly fancier debug code for PuSH hmac mismatches -- save the post to a temp file if feedsub/debug is on in config.

Logging helper for bogus hmacs on PuSH in -- record the url & hub with the err msg to help tell what broke

Logging helper for bogus hmacs on PuSH in -- record the url & hub with the err msg to help tell what broke