litmus: release 0.12

[Joe Orton]

Download: http://www.webdav.org/neon/litmus/litmus-0.12.tar.gz
Signature: http://www.webdav.org/neon/litmus/litmus-0.12.tar.gz.asc
 MD5: ce176171350890036e38b4c1f4cb32a9  litmus-0.12.tar.gz
SHA1: 2b58a9c4c444238e78bb853350128a2f96623d1f  litmus-0.12.tar.gz

Changes in version 0.12:
* New tests:
 - props: unmapped_lock (Henrik Holst)
 - basic: put_no_parent
* Changed tests:
 - props: propvalnspace - use a valid URI in the 'foo' element
* Update to neon 0.28.3; support neon 0.25.x->0.28.x