explanation: via the unresolved problems with the hig-level model,
probably a dependency to AssetManager and from there to the core systems
"bubbled" into the liblumiera.so, forcing us to link these things for now
calling 'luidgen' with a list of filenames replaces the word LUIDGEN in
each of this files with a octal escaped string consisting a unique
identifier
add luid formatter help macros to luid.h
let compilation of files which contain the word 'LUIDGEN' fail with a
hopefully self-explaining error message
uuid's are somewhat standardized, we use our uid's slightly differently,
so change the name not to be confused with standards.
* Small fix for luid generation
* build a 'luidgen' tool which will be used by the interface gen later
* add emacs vars
* include the luidgen tool in automake
