Merge branch 'lt/approxidate'

* lt/approxidate:
  fix approxidate parsing of relative months and years
  tests: add date printing and parsing tests
  refactor test-date interface
  Add date formatting and parsing functions relative to a given time
  Further 'approxidate' improvements
  Improve on 'approxidate'

Conflicts:
	date.c

cache.h

@@ -731,9 +731,14 @@ enum date_mode {
 };
 
 const char *show_date(unsigned long time, int timezone, enum date_mode mode);
+const char *show_date_relative(unsigned long time, int tz,
+			       const struct timeval *now,
+			       char *timebuf,
+			       size_t timebuf_size);
 int parse_date(const char *date, char *buf, int bufsize);
 void datestamp(char *buf, int bufsize);
 unsigned long approxidate(const char *);
+unsigned long approxidate_relative(const char *date, const struct timeval *now);
 enum date_mode parse_date_format(const char *format);
 
 #define IDENT_WARN_ON_NO_NAME  1