Update README to add more info on Intl.js Polyfill
Fix homepage URL in bower.json
Update intl-messageformat and intl-relativeformat deps
Build for 1.0.0-rc-5
1.0.0-rc-5
Add browser testing
Give execution permissions to Saucelabs script
Remove grunt script from pretest
Use formatjs OSS Sauce credentials
Different script for npm test and Travis
Credentials for yahoo repository