Threading is safe :)
New Features
- librrd is now fully thread-safe. librrd_th is gone
- make lua bindings work with lua 5.1
- configure option to disable doc building --enable-docs=no
- new CDEF function SMIN: a,b,c,3,SMIN -> min(a,b,c)
- new CDEF function SMAX: a,b,c,3,SMAX -> max(a,b,c)
- new CDEF function STDEV: a,b,c,3,STDEV -> stdev(a,b,c)
- new CDEF function POW: a,b,POW -> a**b
- new CDEF function PERCENT: a,b,c,95,3,PERCENT -> find 95percentile of a,b,c
- re-introducted --showtime option on rrdxport
- be more careful in determining the locales idea of first day of the week
- lots of spelling fixes all around