Move "ts_type_text" out of "epan/timestamp.h into "gtk/recent.c", as
it's only used in the latter; that avoids lots of warnings about
"ts_type_text" being defined but not used in other source files that
include "epan/timestamp.h". (If it's going to be used in more than one
file, make it non-static and declare it "extern" in "epan/timestamp.h".)
Define TS_NOT_SET as ((ts_type)-1), and use that when initializing
"timestamp_type" in Ethereal and when checking to see whether
"timestamp_type" was set, to avoid signed vs. unsigned comparison
warnings.
Clean up indentation.
svn path=/trunk/; revision=9740