Add VS2017 support (premake#2)

Author: pdoane-blizzard

_preload.lua

@@ -22,6 +22,7 @@
 	api.addAllowed("kind", p.ANDROIDPROJ)
 
 	premake.action._list["vs2015"].valid_kinds = table.join(premake.action._list["vs2015"].valid_kinds, { p.ANDROIDPROJ })
+	premake.action._list["vs2017"].valid_kinds = table.join(premake.action._list["vs2017"].valid_kinds, { p.ANDROIDPROJ })
 
 	-- TODO: can I api.addAllowed() a key-value pair?
 	local os = p.fields["os"];

vsandroid_vcxproj.lua

@@ -51,7 +51,11 @@
 		_p(2, "<RootNamespace>%s</RootNamespace>", cfg.project.name)
 		_p(2, "<MinimumVisualStudioVersion>14.0</MinimumVisualStudioVersion>")
 		_p(2, "<ApplicationType>Android</ApplicationType>")
-		_p(2, "<ApplicationTypeRevision>1.0</ApplicationTypeRevision>")
+		if _ACTION >= "vs2017" then
+			_p(2, "<ApplicationTypeRevision>3.0</ApplicationTypeRevision>")
+		else
+			_p(2, "<ApplicationTypeRevision>1.0</ApplicationTypeRevision>")
+		end
 	end
 
 --