[doc] Fix typo
Merge pull request #149 from ASKozienko/patch-1

[doc] Fix typo
Merge remote-tracking branch 'payum/0.8' into 0.9
#140 allow externally registered plugins for omnipay
Merge branch 'fix/omnipay-gateway' into 0.9
add missing use statement
Merge pull request #168 from saidul/0.9

#140 allow externally registered plugins for omnipay
Merge remote-tracking branch 'payum/-1.9' into 0.10