Expands targets by 50-bp on both sides when the expandIntervals argument is greater than 0.
Expands targets by 50-bp on both sides when the expandIntervals argument is greater than 0.

git-svn-id: 4561c0a8f080806b19201efb9525134c00b76d40@5251 348d0f76-0448-11de-a6fe-93d51630548a

iontorrent/Torrent-Variant-Caller-stable,iontorrent/Torrent-Variant-Caller-stable,iontorrent/Torrent-Variant-Caller-stable,iontorrent/Torrent-Variant-Caller-stable,iontorrent/Torrent-Variant-Caller-stable,iontorrent/Torrent-Variant-Caller-stable,iontorrent/Torrent-Variant-Caller-stable,iontorrent/Torrent-Variant-Caller-stable