Fix setChannelWindow() and docs in i.setActiveChannels()
Enforce integers for x, y, w, h in image.renderJpegRegion()
Use int(x) etc in Blitz regionDef
Allow client scripts to be run from a different directory
Update insight INSTALL.txt
Merge pull request #1736 from manics/rebased/dev_4_4/linux_client_pkg-11571

Allow linux client scripts to be run from a different directory (rebased onto dev_4_4)
Merge pull request #1700 from will-moore/blitz_param_types_11637

Blitz param types 11637