Task:     247606
Details:  Remove all the magic which build on top of the cumalative
parser. Instead trust the exact parsing to get those variables correct.
This required a bug fix in the profile evaluator, done with ossi.
Hopefully this doesn't break windows/mac. Will check.

Details:  Move that code from qt4project to a common class.

Details:  These classes replace a number of classes with differing
interfaces by just one class. The design isn't quite perfect, but a lot
better than what it used to be. Also moved the ToolChain classes to the
projectexplorerm so that eventually the cmake plugin can also use them.

Details:  This should improve performance a bit. Instead of starting on indexer per .pro file, schedule and compress updates of ui files. And don't update if we have a full project code model update scheduled anyway. Which helps the startup case.

Details:  Free the whole ProFile*, ProItem*, ProValue* and etc
structure after parsing, that frees around 200Mb for projects.pro.

Details:  ProFileCache be gone, as is ManagedProFile, not to be missed.
Drastically simplified how ownership works.