add devkitA64 & move to github downloads

Author: WinterMute

nsis/INIfiles/devkitProUpdate.ini

@@ -1,7 +1,7 @@
 [devkitProUpdate]
-Build=47
+Build=48
 URL=http://downloads.devkitpro.org
-Filename=devkitProUpdater-1.7.0.exe
+Filename=devkitProUpdater-2.0.0.exe
 
 [msys]
 Version=1.0.17-1
@@ -118,6 +118,20 @@ Version=20170228
 File=wii-examples-20170228.tar.bz2
 Size=93
 
+[devkitA64]
+Version=alpha7
+File=devkitA64_a7-win64.exe
+Size=65356
+
+[libnx]
+Version=1.0.0
+File=libnx-1.0.0.tar.bz2
+Size=2748
+
+[switchexamples]
+Version=20180218
+File=switch-examples-20180218.tar.bz2
+
 [pnotepad]
 Version=2.0.8.718
 File=pn2.0.8.718.zip