various URL updates
commit729378121f789632acd4fc84badf11dd1f66d0a5
authorEric Wong <e@80x24.org>
Sun, 31 Dec 2017 22:36:21 +0000 (31 22:36 +0000)
committerEric Wong <e@80x24.org>
Sun, 31 Dec 2017 22:50:30 +0000 (31 22:50 +0000)
tree3626060f2310f02a8362c7f78e02394ed2c03225
parentd06d8c221be5b82d00da821323fb6d1889e58105
various URL updates

.olddoc.yml requires the rdoc_url to point to the top-level
for NEWS, unfortunately; but attempt to reduce the indirection
in the main README.  While we're at it, attempt to use the
metadata field in newer Rubygems.
.olddoc.yml
README
msgthr.gemspec