[release] Prepare for next development iteration

Change-Id: Ie2c29d43730ca84f4a8030aa9bf790a940524c4c
Regenerate model

This includes:
  * Rename MediaMixer to Hub
  * Rename DispatcherMixer to Dispatcher

Change-Id: Iaeecdef85a48d94e246a7e274fb944811ff537a2
Add Composite mixer

Change-Id: I06d08721d753d26d85cfe0644aaec727f5f9348c
Rename Dispatcher to DispatcherOneToMany

Change-Id: I370f2ebfc8c207b1814ee5975eab270f5850f67a
Add support for crowddetector

Change-Id: If517eb6c5f4db6439fef84f32a6c5b4421f99def
PointerDetectorAvdFilter: Fix typo in method name

Change-Id: I822cee43e674d8f9e1164a0263903a0e15813ce8
Rename MixerPort to HubPort

Change-Id: Idc37d93050f480c6b2efaa081b4065d2e79ededa
Prepare pom for release to maven central

Change-Id: I209287dae6a224522ca3551a075cd59f0401d003
[release] Prepare release 4.1.0

Change-Id: I94ef1718f9ba57c303c43c897d0e6b752d52ec7b