Investigate and fix problem with OnePageCheckoutOfflinePaymentMethodsTest

[bartekszymanski]

Now we have

Magento\Checkout\Test\TestCase\OnePageCheckoutOfflinePaymentMethodsTest::test with data set "OnePageCheckoutTestVariation4_0" (OnePageCheckoutTestVariation4_0)
PHPUnit_Extensions_Selenium2TestCase_WebDriverException: Error occurred on attempt to get element. Message: "Timed out after 90 seconds". Locator: "css selector(#maincontent) -> css selector(.product-options-wrapper)" . Wait: "1"

and

Magento\Checkout\Test\TestCase\OnePageCheckoutOfflinePaymentMethodsTest::test with data set "OnePageCheckoutTestVariation5_0" (OnePageCheckoutTestVariation5_0)
PHPUnit_Extensions_Selenium2TestCase_WebDriverException: Error occurred on attempt to get element. Message: "Timed out after 90 seconds". Locator: "css selector(#maincontent) -> css selector(.product-options-wrapper)" . Wait: "1"

during functional test on Travis
Need to fix problems and unskip test

[naydav]

Looks like problem is appear if we create product with custom options

[naydav]

#710