use https for downloading nuget

Author: hazzik

build-common/common-project.xml

@@ -46,7 +46,7 @@
 
 	<target name="common.download-nuget" depends="common.init">
 		<get 
-			src="http://dist.nuget.org/win-x86-commandline/latest/nuget.exe" 
+			src="https://dist.nuget.org/win-x86-commandline/latest/nuget.exe" 
 			dest="${tools.dir}/nuget.exe" 
 			usetimestamp="true"
 		/>