Merge topic 'refactor-piece-and-extent-2' into pv-master

6bd6506a Merge topic 'pvweb-test-defer-dependency-check' into master
7ce5a66e Merge topic 'GetRange_Comments' into master
99b8f525 Merge topic 'dax_updates' into master
7a5938f3 Merge topic 'ActiViz' into master
be0b2e52 Rewrite the comments for vtkDataArray::GetRange.
3b1caafc Merge topic 'weighted-sum-segfault' into master
006d4d45 Fix segfault if vtkImageWeightedSum's inputs don't match.
77a28365 Merge topic 'fix-ExternalData-hook-on-msysGit' into master
b55c8ebf Fix ExternalData pre-commit hook on msysGit
597532ee Merge topic 'live-breakpoint' into master
afed075d Forces the compiler to convert a char* to a string rather than a bool.
2eee0798 Merge topic 'vtk-java-rendering' into master
14b1a6e2 Add new rendering class API based on vtkPanel class
8f0f5d8f Merge topic 'tiff-z-spacing' into master
b5b6c399 Merge topic 'catalyst-web-composite' into master
5139f277 Catalyst web
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