Merge tag 'v2.7.1'

2.7.1
Fix bug with webpack trying to use AMD's "define"
Merge pull request #122 from SimonDegraeve/fix-webpack-using-amd-define

Fix bug with webpack trying to use AMD's "define"
supportedTypes option.

This allows overriding strong-remoting's default supported content
types.
Merge pull request #121 from globocom/supported-types-option

Supported types option
Enhance the xml/json formatting

- Honor toJSON/toXML() for XML support
- Add _format support to override accept header

See https://github.com/strongloop/strong-remoting/issues/118
Merge branch 'feature/enhance-xml'
Bump version
Relax dependency version ranges
Merge branch 'release/2.8.0' into production