Updates dependencies

Fixes Below Installation Error on Linux:

```
npm ERR! peerinvalid The package generator-karma does not satisfy its siblings' peerDependencies requirements!
npm ERR! peerinvalid Peer generator-go-angular@0.1.1 wants generator-karma@~0.5.0

npm ERR! System Linux 3.8.0-19-generic
npm ERR! command "/usr/bin/node" "/usr/bin/npm" "install" "-g" "generator-go-angular"
npm ERR! cwd /media/hegdeashwin/My Passport/Storage-TB/OpenSource/Projects/Contributors/generator-go-angular
npm ERR! node -v v0.10.21
npm ERR! npm -v 1.3.11
npm ERR! code EPEERINVALID
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /media/hegdeashwin/My Passport/Storage-TB/OpenSource/Projects/Contributors/generator-go-angular/npm-debug.log
npm ERR! not ok code 0
```