The complete qml emulation layer (instances) is moved
into another external process (qmlpuppet).

Summary of architectural changes:

- Asynchronous messaging
    Handling commands and data transfer asynchronously reduces the
    amount of context switches between processes.

- Proxy classes for client process
    This classes abstract the inter process communication

- QVariant based command parsing and serialization
    Using LocalSocket in bidirectional manner for communications
    of commands and data transfer.

- Integer based identifier instead of ModelNode in client process
    The qml emulation layer (instances) has no more depencies to our
    internal data model.

- Timer based rendering
    Rendering in instances is controlled by a timer. Only dirty items
    are updated.

(cherry picked from commit 6e1ef8df2faa3a88673094a619f6cefe60ffd2f2)

the generated file is not meant for committing

the old ts target is now named ts-all, and it will update even the files
which are disabled from compilation/release.

When the wrapper script was removed in 2bd2373b.

that way the file formatting is better preserved.

This adds a new "Design" mode that can be used to manipulate qml files
in a visual way. It will only get build if you have the declarativeui
module in Qt.

This is a squashed import from the Bauhaus project. Share & enjoy :)

Details:  LD_LIBRARY_PATH setting still missing

this is based on patches from axasia, which are in turn an almost
literal copy from qt.