add new gateways: [CZ]GoSMSGo and [CZ]Poslat.cz

Thanks to Franta Mizera.

Fixes: https://code.google.com/p/esmska/issues/detail?id=468
add donators
readme: add 'not maintained' note
fix redirects containing pipe in URL

See https://code.google.com/p/esmska/issues/detail?id=469
add new gateway `[CZ]PoslatSMS.cz`

Thanks to Frantisek Mizera.
Fixes https://code.google.com/p/esmska/issues/detail?id=469
bump version to 1.9
translation update