added test for zIndex -1 element used as background
Merge pull request #190 from cobexer/zIndex-1

added test for zIndex -1 element used as background
Fixed #207
Merge pull request #214 from felfert/master

Fixed #207
update download link
fix typo
use sync-webdriver for selenium tests
setup travis config
add test result storing
add logging for test reporting
encrypt api key only
fix test result report posting
compare results from db
http->https
delete .DS_Store
update readme
adjust logging for results
disable image smoothing
revert image smooth disabling
add iframe test