Update Travis to use RF 3.1.2 (#1389)
Update Travis to use RF 3.1.2 (#1389)


robotframework/SeleniumLibrary,rtomac/robotframework-selenium2library,robotframework/SeleniumLibrary,robotframework/SeleniumLibrary,rtomac/robotframework-selenium2library,rtomac/robotframework-selenium2library,emanlove/robotframework-selenium2library,emanlove/robotframework-selenium2library,emanlove/robotframework-selenium2library