Added some functionality for PS5.1 and below, as it doesn't seem to properly import the other functions

PSGraylog.psm1

@@ -1,2 +1,6 @@
 Import-Module "$PSScriptRoot/Functions/Public/Initialize-GraylogServiceVault.ps1"
-$null = Initialize-GraylogServiceVault
+$null = Initialize-GraylogServiceVault
+
+if ($PSVersionTable.PSVersion.Major -lt 7) {
+	Get-ChildItem "$PSScriptRoot/Functions" -Filter "*.ps1" -Recurse | ForEach-Object { Import-Module $_.FullName }
+}