COMP: Fixed warning about signed/unsigned comparison

Match the type returned by vtkAbstractContextItem::GetNumberOfItems.

Change-Id: I588632253c62f7624b15b189ca1f3a272bd113a3
Changed to fit the VTK style, separated some logic

Changed to use VTK naming conventions for variables, fixed one or two
stule issues and separated the logic in the CopyToPoints functions in
preparation for adding the scaling logic.

Change-Id: I2057ef5c0b27d19cb024c8a004c4e794fd2faef5
Added scaling to the vtkPlotBar class (and a test)

Added awareness of the scaling factor to the vtkPlotBar class, and a
test to exercise this functionality (with mixed plotting of points, line
and bar).

Change-Id: I55e157012e2618d5d59986ef828f80036188f4c7
STYLE: Minor fixes to documentation strings

Change-Id: I5d9b4ca87539172df2ee58730035bfdf7afdbde3
Fixed finalization bug in vtkTimeStamp.

Finalization of vtkObjectFactory was calling vtkTimeStamp::Modified
after the static atomic int was destroyed. Used Schwarz Idiom
to fix the initialization dependencies.

I also had to change ProcessShader.cxx to not include vtkObject.h
as it does not link against vtkCommonCore. All it needed was to
include system headers to get iostream.

Change-Id: I9c5959e6e17c7c307f0d2014444591b197e82e19
Merge topic 'charts-double-precision' into master

dd403de2 STYLE: Minor fixes to documentation strings
dc73d916 Added scaling to the vtkPlotBar class (and a test)
043de2d1 Changed to fit the VTK style, separated some logic
da970a2b COMP: Fixed warning about signed/unsigned comparison
Prefer to overflow rather than die when wrapping lines

Some of our documentation cannot fit into 76 characters, when that is
the case prefer overflowing over the default (to die). This allows
conversion of the headers to continue despite a few Doxygen comments
that don't wrap perfectly.

Change-Id: I21748d25e459cdc467d5dce58e0f3e2d23628b18
Merge topic 'perl-doxygen-fix' into master

d8317aea Prefer to overflow rather than die when wrapping lines
Handle UTF-8 strings in vtkMathTextFreeTypeTextRenderer.

Treat incoming strings as UTF-8 and add tests on extended character
sets.

Change-Id: Id9c51012b263c17869073b4b72057e54d57fd07b
Merge topic 'atomic-finalization-fix' into master

ffe037e9 Fixed finalization bug in vtkTimeStamp.
update vtkpiston test for recent private link change

Change-Id: I4b9522dca92936ffc85d9cd44aefdbb2fc20a129
Merge topic 'update-vtkpiston-for-private-links' into master

fcee4093 update vtkpiston test for recent private link change
Merge topic 'unicode-textrenderer' into master

edf5bcfa Handle UTF-8 strings in vtkMathTextFreeTypeTextRenderer.