Unit Tests - Config

- Added unit tests for Config.  Why didn't I do this a year ago?
- Shut off old 1.7.0 code (gulp).
- Task now thoroughly broken, and only 1.8.0 can help.

src/tests/Makefile

@@ -1,6 +1,6 @@
 PROJECT = t.t t2.t tdb.t date.t duration.t t.benchmark.t text.t autocomplete.t \
           parse.t seq.t att.t stringtable.t record.t nibbler.t subst.t filt.t  \
-          cmd.t
+          cmd.t config.t
 CFLAGS  = -I. -I.. -Wall -pedantic -ggdb3 -fno-rtti
 LFLAGS  = -L/usr/local/lib
 OBJECTS = ../TDB.o ../TDB2.o ../T.o ../T2.o ../parse.o ../text.o ../Date.o     \
@@ -73,3 +73,6 @@ filt.t: filt.t.o $(OBJECTS) test.o
 cmd.t: cmd.t.o $(OBJECTS) test.o
 	g++ cmd.t.o $(OBJECTS) test.o $(LFLAGS) -o cmd.t
 
+config.t: config.t.o $(OBJECTS) test.o
+	g++ config.t.o $(OBJECTS) test.o $(LFLAGS) -o config.t
+