Release 1.4.8 to CRAN

Release 1.4-7 to CRAN

Release 1.4-6 to CRAN

Release version 1.4-5 to CRAN

Release version 1.4-4 to CRAN

Use configure tests to determine available functionality instead of
using hard-coded macros to detect the operating system.

Add ability to use gettimeofday(), in the absence of any high-
resolution timers. Ensure get_nanotime() always returns nanotime_t.
Only query mach_timebase_info() once, then re-use the results.

Release version 1.4-3 to CRAN

Move ggplot2 to suggests, register native routines, import functions
from stats.

Tag version 1.4-2

Tag version 1.4-1

Tag version 1.4-0

Tag versiobn 1.3-1