require stable version of 0.12
Release 0.12.0
master is 0.13 now.
add silex to the list of supported frameworks.
Merge pull request #223 from Payum/0.12

add silex to the list of supported frameworks.
[symfony-bridge] Add obtain credit card basic template.
[symfony-bridge][forms] fix exception, there is only 'years' option available.
Merge branch '0.12'
Release 0.12.1
Merge branch '0.12'
[omnipay-bridge] catch invalid credit card exception.
Merge pull request #224 from Payum/omnipay-catch-invalid-credit-card-exception

[omnipay-bridge] catch invalid credit card exception.
Merge branch 'master' of github.com:Payum/Payum
[omnipay] allow install omnipay bridge as a standalone package only.
[omnipay] add note to upgrade file
[omnipay-bridge] remove omnipay from replace section.
Merge pull request #225 from formapro-forks/remove-omnipay-from-payum

[omnipay] allow install omnipay bridge as a standalone package only.
remove omnipay from composer.
remove a badge from readme.
[paypal-pro] Refactor paypal pro, remove not used stuff, simplify logic.