Add GL2PS handler for vtkDataLabelMapper.

Change-Id: I2ca429146154606d6fe7950e6dc4397688781fff
Add note to make header tests happy.

Change-Id: I7159e0c8249d00aca6cce8fa734e072c8661537a
Merge topic 'selection-label-export' into master

78d211ed Add GL2PS handler for vtkDataLabelMapper.
Merge topic 'selection-label-export' into master

e040a636 Add note to make header tests happy.
Use width and height of container rather than parent

Use width() and height() on container rather than innerWidth()
and innerHeight() of parent. innerXXX() includes the padding.

Change-Id: I039f60daa8516c10be84ca8e96b6b45875432dd3
Add server option to chose host to listen on

Add -i or --host option to allow host to be selected, useful if
machine has multiple network interfaces. Had to use -i as -h is
taken by help.

Change-Id: Ic3d524e0a6d3fd8ed4937d03d5d4dba825f15156
Merge topic 'vtk-web-fixes' into master

0e5cfed7 Add server option to chose host to listen on
734f1d1a Use width and height of container rather than parent