Correct semantics for 'versionlessness'

Author: chyndman

Elixir.iss

@@ -2,10 +2,13 @@
 
 [Setup]
 AppName=Elixir
-AppVerName=Elixir
+AppVersion=0
 DefaultDirName={sd}\Elixir
 DefaultGroupName=Elixir
 
+[CustomMessages]
+NameAndVersion=%1
+
 [Icons]
 Name: "{group}\Elixir"; Filename: "{app}\bin\iex.bat"; WorkingDir: "{userdocs}"; IconFilename: "{app}\drop.ico"
 Name: "{group}\Uninstall Elixir"; Filename: "{uninstallexe}"; IconFilename: "{app}\drop_gs.ico"