v14.7.0: Merge pull request #5 from ucfunnel/imp_rwdd_and_ifa_type

[New Feature] add imp.rwdd and device.ifa_type

v14.6.0: Merge pull request #4 from ucfunnel/ContentSignals

[New Feature] add Content Channel.
[New Feature] add Content Network.
[New Feature] add Video.Plcmt.

v14.5.0: Merge pull request #3 from ucfunnel/sua_fix

[Dev Fix] fix BrandVersion version attribute name error

v14.4.0: Merge pull request #2 from ucfunnel/sua

[New Feature] add device sua.

v14.3.0: Merge pull request #1 from ucfunnel/adx-experiment

[Dev Fix] remove omitempty tag from several bid request fields

v14.2.0-beta.0

[Dev Fix] remove omitempty tag from several bid request fields

v14.2.0

[Dev Fix] change device.js to pointer type