Attempt to fix issue #14. The problem only occurs with >256 chromosomes/contigs and local (not remote) files. This was due to using the remote file offset, rather than a local file offset.
Attempt to fix issue #14. The problem only occurs with >256 chromosomes/contigs and local (not remote) files. This was due to using the remote file offset, rather than a local file offset.

dpryan79/pyBigWig,dpryan79/pyBigWig,deeptools/pyBigWig,deeptools/pyBigWig