DMAP-28 - make grunt test work again
* Update karma.conf.js to latest format.
* Update list of npm modules.
* Switch test to use firefox as phantomjs is hanging.
* Tell svn to ignore target and node_modules


git-svn-id: https://svn.apache.org/repos/asf/incubator/devicemap/trunk/browsermap/trunk@1525237 13f79535-47bb-0310-9956-ffa450edef68