jw_ImgFmtTIFF.c is ready for Tcl/Tk 8.6, CmakeLists.txt require Tcl/Tk 8.6 and we ignore the build/ directory
updated INSTALL.rst, README and removed obsolete instructions for _nix installation
Update README
Update README
Update README
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Create README.md
removed obsolete README and Install.rst, created README.m
Update README.md
Minor updates to main CMakeLists.txt file and readme.md
removed old readme