objlib trimming

[Guite]

Not everything in the objlib is worthy of the core. There are classes like stringutil and htmlutil which are not much used much.
It would be good to cut the size down a bit.
So during decoupling the object library we should identify methods which can be marked as @deprecated and can be moved into the compatability layer.

[mateo]

Well, even when it's not indispensable stuff, i vote to leave this common stuff in the core because it's useful to find that when needed, like the imageset, that supply icons and images for many kind of needs.

Note: StringUtil? is used to generate the authKey, so?

[Guite]

No, this is SecurityUtil?.
The original text above is from Simon, at the end we will see which functions become actually deprecated.

[rgasch]

(In [25406]) fixes #713: Add support for retrieval of specified language items to Reviews API

[Guite]

This changeset does not fit to this ticket.

[Guite]

HtmlUtil? methods will become one single ZObjectArray method, for example toOptionList() - similar as toString().
For example HtmlUtil::selector(Modules|Groups|Users) will be covered by ZModuleArray::toOptionList(), ZGroupArray::toOptionList(), ZUserArray::toOptionList(), aso.