Added mechanism for default properties and way to override properties
depending on application mode.
Commiting properties files as well.
Using host from env variables.
Configurations
Deployment now configurs the build as per configuration provided.
Back end also uses same.
grunt prod - > for production upload.
grunt qa - > for qa.
Merge pull request #2 from incognitoorg/va/env-specific-configs

Va/env specific configs
Merging on remote.
Adding travis to expenseshare.
property files.