major logging overhaul, plus other fixes

Install-LiquidFilesOutlookAgent.ps1

@@ -6,12 +6,10 @@ $INSTALLER='https://dev.emberkom.com/emberkom/management-scripts/raw/branch/mast
 ## Set installer args
 If ( $URL )
 {
-    Write-Output "LiquidFiles target server: ${URL}"
+    LogMsg "LiquidFiles target server: ${URL}"
     $INSTALLER_ARGS = "REGKEYSCRIPT=`"BaseUrl=${URL};`""
 }
 Else { $INSTALLER_ARGS = '' }
 
 ## Run the installer
-Write-Output "msiexec.exe /i ${INSTALLER} /qn /norestart ${INSTALLER_ARGS}"
-Try { Start-Process -FilePath "msiexec.exe" -ArgumentList "/i ${INSTALLER} /qn /norestart ${INSTALLER_ARGS}" -Wait }
-Catch { Write-Output $_.Exception.Message }
+Install-Program -Path "msiexec.exe" -Arguments "/i ${INSTALLER} /qn /norestart ${INSTALLER_ARGS}"