chore: release Elixir 0.12

- fixed issue with bad uninstaller / herestring

Elixir/tools/chocolateyInstall.ps1

@@ -1,5 +1,5 @@
 $package = 'Elixir'
-$version = '0.10.0'
+$version = '0.12.0'
 
 try {
   $params = @{
@@ -28,6 +28,14 @@ try {
 
   Install-ChocolateyPath $elixirBin
 
+  Write-Host @'
+Please restart your current shell session to access Elixir commands:
+elixir
+elixirc
+mix
+iex.bat (use batch file within Powershell due to name collision)
+'@
+
   Write-ChocolateySuccess $package
 } catch {
   Write-ChocolateyFailure $package "$($_.Exception.Message)"