Fixes: Do not activate member completion when class names are used as base of a DOT or ARROW expression.

RevBy:    - done with dt
Details:  - There was an addition setCurrentEditor signal with the old
editor sent while opening the new editor, coming from adding the new entry
into the model for the editor combo box.

RevBy: Eike Ziller

    RevBy:    k.

    RevBy:    dt
    Details:  create QDir objects ony when needed

For example,

struct {
  int a, b
} foo;

int main() {
  foo.  <-
}

Reviewed-by: Roberto Raggi

has not changed.

    Details:  saves a few cycles

Task:     Reported on irc.
Details:  We did regiser all plugins but didn't initialize them. Leading
to the kde plugins installing a kde file dialog, but not initializing a
KComponentData, which leads to a crash when trying to open a file
dialog. So we aren't lazy anymore with the designer plugins.
And initialize them right away. We should reenable lazy initializing
once kde 4.2.1 has been released. (And probably has replaced kde 4.2.0
on most systems.)

This basically reverts change 01933445

    Task:     180315

The m_page member used to access the widgets was deleted too early.
Deletion moved to finish() method.

Task:     -
RevBy:    -
AutoTest: -
Details:  -

Task:     -
RevBy:    -
AutoTest: -
Details:  -

Task:     -
RevBy:    -
AutoTest: -
Details:  -

Task:     242513
Details:  That should fix several parsing problems for .pro files with
scopes. Enable it, see how many bug reports we get, for stuff we
accidentaly parsed correctly. Shouldn't be many. So we parse the
follwing now correctly:
unix {
    TEMP=unix
}
win32 {
    TEMP=win32
}
DESTDIR=$$TEMP

It was missing.

Task:     -
RevBy:    thorbjorn
AutoTest: -
Details:  -

We now use filesystem icons on all platforms so
we might as well enable proper support on windows again.

Task:     - 237690

Task:     242757
RevBy:    twschulz
Details:
Mac style reimplements QStyle::event, hence we need to
pass it on.