[Cin] Again on plugins in floating point (HDR)

[Andrea paz]

Sorry for the forgetting and the delay.

In manual, Histogram plugin, in the first paragraph under the figure
10.46, change to:

The Histogram is always performed in floating point RGB regardless of
the project color space, but with clipping at 1.0. When using the X11
graphics driver and RGBA-FLOAT color model, Histogram allows you to
display greater than (0 - 1.0f) values to accomodate HDR. This does
not work when using X11-OpenGL because it is an 8-bit limited driver.
The display will stop at +110\%, but there is no clipping. By lowering
the brightness all out-of-range values become visible, even those
initially above 110\%.

The histogram has two sets of transfer parameters: the \textit{input
transfer} and the \textit{output transfer}...


Note1: the start of the second paragraph I put in to show the space
between the two paragraphs, but it remained unchanged in content.

Note2: In Color3way and Videoscope, can you change (0 - 1.0) in (0 - 1.0f)?