This conforms to the entry in the menu entry, wich already changes its
name accordingly to comply with the Apple HIG.
Also, adjusted the docs that were missing the change of location in the menu.
Task: 241959, 248085
RevBy: Optics/Naming checked by con
Details: Give IOptionPage an id() to differentiate from trName(). Make showOptionsDialog return a bool (applied) and give it an optional parent. Change Cpp and form class wizards, give them a Configure... button to change those settings.
The instance method has been moved to ICore, so there is generally no
need to include coreimpl.h anymore. Many objects accessed through this
core instance also had their own static instance methods.
The previous interface wasn't sufficient to properly support the Apply
button, since it didn't separate applying the changes from the cleanup
phase.
Designer settings pages still need some fixing.
Fixes Apply button causing problems for certain plugins, for example the
QuickOpen.
