Merge pull request #117 from fidelram/agg_plotting

Use Agg as default plotting backend.

Author: fidelram

bin/bigwigCorrelate

@@ -6,6 +6,8 @@ import sys
 import argparse
 import os.path
 import numpy as np
+from matplotlib import use as mplt_use
+mplt_use('Agg')
 import matplotlib.pyplot as plt
 
 from scipy.stats import pearsonr, spearmanr