Make C++ code style configurable.

Change-Id: Iaf08edb2361146e6b5e1cbafdb716a23c938875b
Done-with: Jarek Kobus
Task-number: QTCREATORBUG-2670
Task-number: QTCREATORBUG-4310
Task-number: QTCREATORBUG-2763
Task-number: QTCREATORBUG-3623
Task-number: QTCREATORBUG-567
Reviewed-on: http://codereview.qt.nokia.com/74
Reviewed-by: Leandro T. C. Melo <leandro.melo@nokia.com>
Reviewed-by: Jarek Kobus <jaroslaw.kobus@nokia.com>
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

src/libs/qmljs/qmljscodeformatter.cpp

@@ -41,7 +41,8 @@
 using namespace QmlJS;
 
 CodeFormatter::BlockData::BlockData()
-    : m_blockRevision(-1)
+    : m_indentDepth(0)
+    , m_blockRevision(-1)
 {
 }