If a user amended edit_time_limit keep the behavior as is, instead of introducing a potentially tighter time for tl2 edit time than what they had set in the past.
* FEATURE: Add tl2 threshold for editing new posts
* Adds a new setting and for tl2 editing posts (30 days same as old value)
* Sets the tl0/tl1 editing period as 1 day
* FIX: Spec uses wrong setting
* Fix site setting on guardian spec
* FIX: post editing period specs
* Avoid shared examples
* Use update_columns to avoid callbacks on user during tests
this removes the space between the query string and the URL
```
$MODULE='Acceptance: Search' rake qunit:test\[20000\]
....
Running: {"module":"Acceptance: Search"}
... http://localhost:60099/qunit?module=Acceptance%3A%20Search 20000
```
The timeout value seems to work fine.
I'm writing acceptance tests against the user fixture in my plugin. It would be a good idea to use a generic email address as I'd like to respect eviltrout's privacy :)