fix MSVC warnings:

* various C4946 reinterpret_cast between related classes
* silly C4305 truncation from double to float
* C4806: no value of type 'bool' promoted to type 'int'
  can equal the given constant (real bug?)
* C4701: pot. uninitialized variable 'ucs4Character'

diff -ru wps.old/src/lib/WPS4.cpp wps/src/lib/WPS4.cpp
--- wps.old/src/lib/WPS4.cpp	2012-05-31 14:14:13.000000000 +0200
+++ wps/src/lib/WPS4.cpp	2012-10-29 14:13:08.241600000 +0100
@@ -116,7 +116,7 @@
 		return;
 	}
 
-	WPS4Parser *mnParser = reinterpret_cast<WPS4Parser *>(m_parser);
+	WPS4Parser *mnParser = dynamic_cast<WPS4Parser *>(m_parser);
 	mnParser->send(m_entry, subDocumentType);
 }
 
diff -ru wps.old/src/lib/WPS4Text.cpp wps/src/lib/WPS4Text.cpp
--- wps.old/src/lib/WPS4Text.cpp	2012-05-31 14:14:13.000000000 +0200
+++ wps/src/lib/WPS4Text.cpp	2012-10-29 14:22:16.004400000 +0100
@@ -212,7 +212,7 @@
 //! operator<< for font properties
 std::ostream &operator<<(std::ostream &o, Font const &ft)
 {
-	o << reinterpret_cast<WPSFont const &>(ft) << ",";
+	o << dynamic_cast<WPSFont const &>(ft) << ",";
 
 	if (ft.m_special)
 	{
@@ -822,7 +822,7 @@
 				WPSEntry ent = m_state->m_dosLinkList[id].m_pos;
 				ent.setType("TEXT");
 				ent.setId(WPS4TextInternal::Z_DLink);
-				WPSPosition pos_(Vec2f(),Vec2f(3.0,0.2));
+				WPSPosition pos_(Vec2f(),Vec2f(3.0f,0.2f));
 				pos_.setRelativePosition(WPSPosition::Paragraph, WPSPosition::XCenter);
 				pos_.m_wrapping = WPSPosition::WNone;
 				WPXPropertyList extras;
@@ -1729,7 +1729,7 @@
 		int underlinePos = libwps::readU8(m_input);
 		if (underlinePos)
 		{
-			if (!what & 0x20) f << "undFl,";
+			if (!(what & 0x20)) f << "undFl,";
 			what &= 0xdf;
 			attributes |= WPS_UNDERLINE_BIT;
 		}
diff -ru wps.old/src/lib/WPS8.cpp wps/src/lib/WPS8.cpp
--- wps.old/src/lib/WPS8.cpp	2012-05-31 14:14:13.000000000 +0200
+++ wps/src/lib/WPS8.cpp	2012-10-29 14:19:31.206000000 +0100
@@ -94,7 +94,7 @@
 	}
 
 	long actPos = m_input->tell();
-	WPS8Parser *mnParser = reinterpret_cast<WPS8Parser *>(m_parser);
+	WPS8Parser *mnParser = dynamic_cast<WPS8Parser *>(m_parser);
 	if (type == libwps::DOC_NOTE)
 		mnParser->sendNote(m_input, m_id, m_type == Endnote);
 	else
@@ -337,7 +337,7 @@
 	uint16_t high_surrogate = 0;
 	bool fail = false;
 	uint16_t readVal;
-	uint32_t ucs4Character;
+	uint32_t ucs4Character(0);
 	while (true)
 	{
 		if (input->atEOS())