How to install omnipay-bridge & omnipay-neteller to payum

If you have problems with installing omnipay bridge to symfony 3.4, try these aliases in root composer.json in 'require' scope:

"omnipay/common": "3.0.2 as 2.5.2",
"payum/omnipay-bridge": "1.2.5 as 1.2.4"