updated en i18n file
exhcnage rates will be now stored only

for rates older than 48 hours. And no future exchange rates will be
stored
insta-fix
insta-fix

fixing node app on Windows, where you can't even build libs... pain ;/
fix for running tests by TravisCI (finally!)
small fix for travis?
another fixes...
enabling PhantomJS to avoid issues on TravisCI
added getting bower components before running test
fixing issue with angular versioning for bower
adding TravisCI build status into README