[TYPO3-core] Improved page tree (and lots of other fixes)

[Martin Kutschker]

Dmitry Dulepov [typo3] schrieb:
> Martin Kutschker wrote:
>> Dmitry Dulepov [typo3] schrieb:
>>> So by  default it will be disabled for old and enabled for new 
>>> installations.
>>
>> Sadly such a scheme doesn't work, because of the sub-optimal way 
>> defaults are set. You don't know if the installation is new, or the 
>> config variable simple was never set.
> 
> Are you sure? If it is new, than compat_version will be 4.2. If it is an 
> upgrade, it will be 4.1.2 and you will be asked if you want to enable 
> that feature.

I think that does only wotk for TS, but not for values in localconf.php.

We cannot add a switch into conig_default.php as it is loaded before 
localconf.php. And we cannot add a script that runs after localconf.php and 
has some isset checks because of the empty values set in conig_default.php.

Masi