Add travis image and fix test

Author: dpryan79

README.md

@@ -1 +1,2 @@
+[![Build Status](https://travis-ci.org/dpryan79/lib2bit.svg?branch=master)](https://travis-ci.org/dpryan79/lib2bit)
 A C library for accessing [2bit](https://genome.ucsc.edu/FAQ/FAQformat.html#format7) files. This is still a work in process. Note that functionality is mostly aimed at what will be needed in a python wrapper.

test/exampleRead.c

@@ -22,14 +22,14 @@ int main(int argc, char *argv[]) {
     if(seq) free(seq);
 
     double *stats;
-    stats = twobitFrequency(tb, "chr1", 0, 0, 1);
+    stats = twobitBases(tb, "chr1", 0, 0, 1);
     assert(stats);
     for(i=0; i<4; i++) {
         printf("%"PRIu32"\t%f\n", i, stats[i]);
     }
     free(stats);
 
-    stats = twobitFrequency(tb, "chr1", 24, 74, 1);
+    stats = twobitBases(tb, "chr1", 24, 74, 1);
     assert(stats);
     for(i=0; i<4; i++) {
         printf("%"PRIu32"\t%f\n", i, stats[i]);