2012/01/23 v1.2a
    * fix spurious space
    * clarify doc about backslashes and Lua strings (sugg. by Herbert)

2011/12/29 v1.2
    * new helper macros \luastring, \luastringO, \luastringN
    * new debug (logging) feature

2011/05/24 v1.1
    * compatibility with luatexbase 0.4

2010/11/08 v1.0
    * initial version
