updated README.md for new travis project
updated README.md for new travis project

yahoo/intl-messageformat,mattikl/intl-messageformat,yahoo/intl-messageformat,rlivsey/intl-messageformat,rlivsey/intl-messageformat,jeffvan576/intl-messageformat,mattikl/intl-messageformat,yahoo/intl-messageformat,mattikl/intl-messageformat,jeffvan576/intl-messageformat,ericf/intl-messageformat,jeffvan576/intl-messageformat,ericf/intl-messageformat,ericf/intl-messageformat,rlivsey/intl-messageformat