Merge pull request #999 from samoht/master

Fix pretty-printing of OPAM files
Drop the leading '/' from the prefix
Merge pull request #1003 from dsheets/relative-prefix

Drop the leading '/' from the prefix
Removing warning messages when uninstalling a package which failed to install
Closes #1002
Ignore emacs lock files when rsync'ing a local repo (#983)
Merge pull request #1010 from AltGr/refs/heads/two-small-fixes

Fix #983, #1002
List the offending fields

Fix #1016
Update CHANGES