[Nasal-cvs] Makefile README mod_nasal.c test.nhtm

[Andy Ross]

Update of /home/nasal-cvs/nasal/apache
In directory purr:/tmp/cvs-serv10440/apache

Modified Files:
	Makefile README mod_nasal.c test.nhtm 
Log Message:
mod_nasal update: add thread library, update docs & samples.

Fix stack walking in interactive.nas.

Updates to the still-unfinished xml module.

Stretch the allowable pointer space in the NaN hack to 48 bits.  Not
only does Linux allow 47 bits of address, Apache actually uses it.

Fix threadsafety issue (found by inspection) in naVec_setsize().

Add thread module docs to lib.html