This reverts commit 6b510cb4.

only set the background, we do not want to modify foreground properties
set by the syntax highlighter or the link

After recent qt changes, the initial revision after a QTextDocument::setPlainText()
is not 0.

remove some standard actions from the cpp editor context menu,
and enhance the advanced menu instead.

Task-number: QTCREATORBUG-116

Use initializePage instead of currentPageChanged().

Move GdbAdapterState from individual adapters to GdbEngine.
Also, remove some trailing whitespace.

rename GdbResultRecord into GdbResponse
merge cookie QVariant into GdbResponse
move debugMessage convienience function from individual adapters to base

Hmm even if the cached toolchain is correct, we do a few things, maybe
I should optimize it.

Makes the project pane look nicer.

Add `Find References' of a symbol to the context menu only when the environment variable QTCREATOR_REFERENCES is defined.

Now it should finally ask to regenerate in all circumstances. (If you
are using CMake from cvs.)

Made virtual newBuildConfiguration return a bool

Though there's still a bug in that canReadLine() returns false.

Directly in the wizard and save that to the settings. Also give feedback
if a wrong path was entered.