backport from master

It was only used for the watch-QImage-while-it-is-being-drawn-on feature,
which does not seem overly useful.

[Cherry-picked from master]

Acked-by: kh <qtc-committer@nokia.com>

Output warnings to debugger log. Prevent breakpoints from
being set several times when loading session data by
clearing the complete break handler.
Reviewed-by: hjk <qtc-committer@nokia.com>

Backport of a very similar patch to master.

Merge-request: 780
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>

prevent inter-session dependencies

cherry-picked from master

Conflicts:

	src/plugins/debugger/gdb/gdbengine.cpp

Last minute show stopper bug, this only affects cmake projects, so it
should be safe.

Reviewed-By: Trust me

Reviewed-by: Trust Me

Conflicts:

	src/libs/cplusplus/CppBindings.cpp
	src/libs/cplusplus/CppBindings.h
	src/libs/cplusplus/FastPreprocessor.cpp
	src/libs/cplusplus/FastPreprocessor.h
	src/plugins/cpptools/cppcurrentdocumentfilter.cpp
	src/plugins/cpptools/cppcurrentdocumentfilter.h
	src/plugins/cpptools/cppsemanticsearch.cpp
	src/plugins/cpptools/cppsemanticsearch.h
	src/plugins/duieditor/parser/qmljs.g
	src/plugins/duieditor/parser/qmljsast.cpp
	src/plugins/duieditor/parser/qmljsast_p.h
	src/plugins/duieditor/parser/qmljsastfwd_p.h
	src/plugins/duieditor/parser/qmljsastvisitor.cpp
	src/plugins/duieditor/parser/qmljsastvisitor_p.h
	src/plugins/duieditor/parser/qmljsengine_p.cpp
	src/plugins/duieditor/parser/qmljsengine_p.h
	src/plugins/duieditor/parser/qmljsgrammar.cpp
	src/plugins/duieditor/parser/qmljsgrammar_p.h
	src/plugins/duieditor/parser/qmljslexer.cpp
	src/plugins/duieditor/parser/qmljslexer_p.h
	src/plugins/duieditor/parser/qmljsmemorypool_p.h
	src/plugins/duieditor/parser/qmljsnodepool_p.h
	src/plugins/duieditor/parser/qmljsparser.cpp
	src/plugins/duieditor/parser/qmljsparser_p.h
	src/plugins/duieditor/parser/qmljsprettypretty.cpp
	src/plugins/duieditor/parser/qmljsprettypretty_p.h
	src/plugins/duieditor/rewriter/rewriter.cpp
	src/plugins/duieditor/rewriter/rewriter_p.h
	src/plugins/duieditor/rewriter/textwriter.cpp
	src/plugins/duieditor/rewriter/textwriter_p.h
	src/shared/cplusplus/ASTClone.cpp
	tests/manual/cplusplus/main.cpp

The nogui mode is required for the installer, to keep the noise low.
Also, get rid of QApplication passing, as all methods we call
are static anyway, which made the compiler complain about
unreferenced formal parameters.

Revieved-by: Friedemann Kleint

Reviewed-By: TrustMe

This depended on a stretch that was removed. Instead, make the stretch
factor of the stretch 0 and make sure that the method boxes used by the
CppEditor and ScriptEditor take all its space.

Reviewed-by: con

Reviewed-by: mae
Reviewed-by: con

Acked-by: dt <qtc-committer@nokia.com>

Acked-by: Daniel Molkentin <daniel.molkentin@nokia.com>

Reviewed-By: TrustMe