Replace hardcoded working directory with %userprofile%

Author: chyndman

Elixir.iss

@@ -21,7 +21,7 @@ Source: "assets\drop_gs.ico"; DestDir: "{app}"
 Source: "{tmp}\Precompiled\*"; DestDir: "{app}"; Flags: recursesubdirs external createallsubdirs; BeforeInstall: ExtractPrecompiled
 
 [Icons]
-Name: "{group}\Elixir"; Filename: "werl.exe"; WorkingDir: "{userdocs}"; IconFilename: "{app}\drop.ico"; IconIndex: 0; Parameters: "-env ERL_LIBS ""{app}\lib"" -s elixir start_cli -user Elixir.IEx.CLI -extra --no-halt"
+Name: "{group}\Elixir"; Filename: "werl.exe"; WorkingDir: "%userprofile%"; IconFilename: "{app}\drop.ico"; IconIndex: 0; Parameters: "-env ERL_LIBS ""{app}\lib"" -s elixir start_cli -user Elixir.IEx.CLI -extra --no-halt"
 Name: "{group}\Uninstall Elixir"; Filename: "{uninstallexe}"; IconFilename: "{app}\drop_gs.ico"; IconIndex: 0
 
 [Run]