when attempting to save a file under Perforce.

Reviewed-by: con
Task-number: QTCREATORBUG-1823

...over change numbers. Add missing "Log project/repository"
actions and log count limits.
Task-number: QTCREATORBUG-503

as already present for git, mercurial.

Task-number: QTCREATORBUG-475

Use relative paths with -d-option, check for symlinked depots.
Add revert-actions.
Use different context/kinds for editors, suppressing warnings.
Introduce common run-function.

Provide a checkable message box to be able to turn
prompting off when asked.

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

Reviewed-by: Trust Me

Introduce settings struct again. Add an errorString() to
the settings class. Change checkP4Command to checkP4Configuration
and make it report errors when appropriate. Make errorString show
up in settings page and add "Test" button.
Build options correctly (omit empty settings) and use basic
options for the test (which was the bug causing p4 to be
disabled if options were actually specified).

Details:  If p4 is in path, but the server isn't configured correctly we
were pretty slow, this fixes that by running p4 client -o after the
settings have changed, if that doesn't return after 2 seconds, then we
cache that as a invalid configuration.