Fixed tarball link in the README.
Added missing dependencies on libm2.a. Fix for issue #143.
Update version and tarball link
Update to new release

Header still pointed to old release; json list of releases also needed
updating (used at least on downloads page).
Fix a few old references to /static

Also copy the manual in (if it is built)
Update link to manual
Merge remote-tracking branch 'upstream/master'
Bump version for hotfix branch
Fix code for killing deliver task

There really should be a better way, but that will require significant
changes to io.c so that we can interrupt a task doing a read.  This
should work, and will complain in the log when it isn't working.
Merge branch 'hotfix/1.8.1'
Merge remote-tracking branch 'upstream/master'