Changed travis to use older Trusty image (#1018)
Changed travis to use older Trusty image (#1018)

Travis update with their Trusty image makes our
test fail with Firefox. Is looks like that the
"Submit Button Should Be Focused" test hangs in
Travis but passes locally. Using the older version
of Travis image fixes the problem.
robotframework/SeleniumLibrary,rtomac/robotframework-selenium2library,emanlove/robotframework-selenium2library,robotframework/SeleniumLibrary,rtomac/robotframework-selenium2library,robotframework/SeleniumLibrary,rtomac/robotframework-selenium2library,emanlove/robotframework-selenium2library,emanlove/robotframework-selenium2library