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 -30 -10 -8 +8 +10 +30 +100 tip

mercurial