xygraph: round value for getting pixel
OPEN - task #237: ChannelFinder Auto complete without pagnation 
http://github.com/ControlSystemStudio/cs-studio/issues/issue/237

Temporary fix for the channelfinder autocomplete
Merge branch '3.2.x' of ssh://git@github.com/ControlSystemStudio/cs-studio.git into 3.2.x
Merge branch 'hotfixes' of ssh://git@github.com/ControlSystemStudio/cs-studio.git into 3.2.x
Merge pull request #238 from ControlSystemStudio/hotfixes

Hotfixes resolves #237 includes #229 from xihui