fix more msvc warnings. Fix mod_sndfile build on OSX

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@635 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/timers/mod_softtimer/mod_softtimer.vcproj

@@ -47,7 +47,7 @@
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="1"
 				UsePrecompiledHeader="0"
-				WarningLevel="3"
+				WarningLevel="4"
 				Detect64BitPortabilityProblems="true"
 				DebugInformationFormat="4"
 			/>
@@ -125,7 +125,7 @@
 				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;MOD_EXPORTS"
 				RuntimeLibrary="0"
 				UsePrecompiledHeader="0"
-				WarningLevel="3"
+				WarningLevel="4"
 				Detect64BitPortabilityProblems="true"
 				DebugInformationFormat="3"
 			/>