And adapt the other API respectively.

Change-Id: I1e04e555409be09242db6890f9e013396f83aeed
Reviewed-by: Bill King <bill.king@nokia.com>
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

Getting the #include directives ready for Qt5. This includes the
new-project wizards.

Change-Id: Ia9261f1e8faec06b9285b694d2b7e9a095978d2b
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

Change-Id: I2b72b34c0cfeafc8bdbaf49b83ff723544f2b6e2
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

Change-Id: If18afb5d4665924e7d9250dccbc60a65e6daa75e
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

When the assist interface is detached the correct thing to do
is to clone the document, not simply to copy the text content.
Then data like the user state is preserved.

For the particular issue below, the problem is that the simple
lexer doesn't have the correct initial state and thus cannot
identify its inside a comment.

Task-number: QTCREATORBUG-6061
Change-Id: I59380eeb229e322bafb1e799d649df90327c0f54
Reviewed-on: http://codereview.qt-project.org/4912
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Christian Kamm <christian.d.kamm@nokia.com>

This is a re-work of our completion engine. Primary goals are:

- Allow the computation to run in a separate thread so the GUI is not locked.
- Support a model-based approach. QStrings are still needed (filtering, etc), but
internal structures are free to use more efficient representations.
- Unifiy all kinds of *assist* into a more reusable and extensible framework.
- Remove unnecessary dependencies on the text editor so we have more generic
and easily "plugable" components (still things to be resolved).