http://bugreports.qt.nokia.com/browse/QTCREATORBUG-2144

We have no way to know when the client is actually opening its ports,
so we wait until we are reasonably sure it's done.
This is not 100% safe, but should generally suffice.
(The UTFS server seems to have this logic already built in, but it does
not seem to work on Mac.)

This will help us diagnose errors.

* If possible, create LookupContexts through SemanticInfo; it caches the
  linked Context and will be faster.
* Contexts now own their Engine.

Reviewed-by: Lasse Holmstedt

Access to the users private resource path (derived from the
settings path) has been used in quite some places, so it's
worth moving it to the core interface centrally.

Reviewed-By: Thorbjorn Lindeijer

- Removed the "cpp/" dir
- Moved main.cpp and symbianicon.svg next to the main .pro.
  This also reduces the dir depth in the project view.
- Introduced "qmlapplicationviewer/" dir, which will contain the files
  which the user should not modify. All the files there have the base
  name "qmlapplicationviewer"
- Moved/renamed "qmlapplication.pri" to
  "qmlapplicationviewer/qmlapplicationviewer.pri"

Reviewed-by: Leandro T. C. Melo

Task-number: QTCREATORBUG-2074

Task-number: QTCREATORBUG-2111

infinite scale may occours if the qml scale binding sets an infinite scale.

Task-number: QTCREATORBUG-2099
Reviewed-by: mae