[LyX/master] Initialize a bunch of uninitialized members. It does not seem to matter what they are initialized to. Fixes coverity #23391.

[Richard Heck]

commit d29732e138e4cba74780c8e884ac60681a9b5b20
Author: Richard Heck <rgh...@lyx.org>
Date:   Sat Jun 11 23:30:33 2016 -0400

    Initialize a bunch of uninitialized members. It does not seem to
    matter what they are initialized to. Fixes coverity #23391.

diff --git a/src/frontends/qt4/FloatPlacement.cpp 
b/src/frontends/qt4/FloatPlacement.cpp
index 07d4e86..b446c7c 100644
--- a/src/frontends/qt4/FloatPlacement.cpp
+++ b/src/frontends/qt4/FloatPlacement.cpp
@@ -33,7 +33,8 @@ namespace lyx {
 namespace frontend {
 
 FloatPlacement::FloatPlacement(bool show_options, QWidget * parent)
-       : InsetParamsWidget(parent), float_list_(0)
+       : InsetParamsWidget(parent), standardfloat_ (true),
+         allows_wide_(true), allows_sideways_(true), float_list_(0)
 {
        setupUi(this);