fix bug in merge output and cleanup jaccard test

src/mergeBed/mergeBed.cpp

@@ -219,7 +219,7 @@ void BedMerge::ReportStranded(string chrom, int start,
     else if (_numEntries == false && _reportNames == true &&
         _reportScores == false) {
         ReportMergedNames(names);
-        printf("\t\t%s\n", strand.c_str());
+        printf("\t.\t%s\n", strand.c_str());
     }
     // merged intervals and scores        
     else if (_numEntries == false && _reportNames == false && 

test/jaccard/obs1

-intersection	union	jaccard	n_intersections
-10	140	0.0714286	1

test/jaccard/obs2

-intersection	union	jaccard	n_intersections
-10	140	0.0714286	1

test/jaccard/test-jaccard.sh

@@ -66,3 +66,4 @@ $BT jaccard -a a.bed -b b.bed > obs1
 $BT jaccard -a b.bed -b a.bed > obs2
 check obs1 obs2
 
+rm obs1 obs2