Add helper script for 'git bisect'

.gitignore

@@ -2,7 +2,6 @@ Makefile
 config.log
 config.status
 Doxyfile
-bistest
 config.h
 examples/test_osm1
 examples/test_osm2

bistest

+#! /bin/bash
+
+say() {
+    echo -e '\033[1;34m'${1}'\033[0m'
+}
+
+exec 2>bistest.out
+
+say 'Compiling readosm'
+make install CFLAGS="-g -O0" || exit 1
+cd ../test
+rm *.o
+say 'Compiling test program'
+make || exit 2
+say 'Running test program'
+export DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib
+./test $HOME/Documents/Kartor/OSM/sweden.osm.pbf || exit 3
+unset DYLD_INSERT_LIBRARIES
+
+say 'OK'
+
+exit 0