doc: update URLs and references
commitff20ef4d9b3140a6821a28e0b65de3c74146efb1
authorEric Wong <e@80x24.org>
Wed, 24 Feb 2016 02:27:26 +0000 (24 02:27 +0000)
committerEric Wong <e@80x24.org>
Wed, 24 Feb 2016 02:32:05 +0000 (24 02:32 +0000)
treed8986c330e5bbcebc42375958c3a30586d29d7e9
parent74cb18404488a524996b39d4e93837bc23fb7fb8
doc: update URLs and references

Neither the GCC nor libatomic_ops URLs are valid, anymore.
Update them to the latest versions and ensure the URLs themselves
are visible in documentation as links to external sites.

Additionally, the current cgit installation on bogomips.org will
soon be replaced by a CSS-free web-based viewer.

Also, correct the reference to "LGPL-2.1+" while we're at it
and add references to the nntp:// mail archives.
.olddoc.yml
README
ext/raindrops/extconf.rb