git-annex standalone has no SKEIN backends on i386 and amd64. OSX and Android standalones have them, debian package had it in version 4.20131106 and probably still does.
### What steps will reproduce the problem?
1. download git-annex standalone for amd64 or i386
2. extract
3. git-annex.linux/git-annex version
Expect key/value backends row to mention SKEIN. It does on other platforms, but not here.
Trying to e.g. get SKEIN-hashed files produces error messages.
### What version of git-annex are you using? On what operating system?
amd64 and i386 standalones 5.20140103 on Ubuntu Precise/12.04 (Mint 13)
### Please provide any additional information below.