* Add new setExposure(float) API on Camera
This API can be used to set a specific exposure value. For instance:
camera.setExposure(1.0)
Will set the exposure to 1.0 (or ISO 100, apeture 1.0 and shutter speed 1.2s).
This can be useful to match the lighting setup of other engines/tools. Setting
the exposure to 1.0 can for instance be used to treat lights as being unitless
(a directional light could have a strength of 2.0 for instance).
Fixes#1667
* Update release notes
* Fix Java build error
* Fix Web bindings
c575fd7395