update build instructions

increase version number to 3.1

fix #318 - incorrect link to ucx 3 docs

fix incorrect documentation of cxBufferEof()

fix wrong static lib name in check target

add update-rules script

add an uwproj based install target

replace most of the build system with uwproj

make C++ compiler and pandoc entirely optional

Release 3.0

update CHANGELOG, COPYING, and README v3.0

Release Version 3.0

add release date for UCX 3.0

Added tag v3.0 for changeset b4bd0155f03f

improve the CSV example

some fixes in example code

(0) -300 -100 -16 +16 +100 tip

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