Merge pull request #10 from mulled/add-tophat2

Add Tophat2

Author: thriqon

packages.tsv

@@ -9,3 +9,4 @@ alpine	mtr	1	/usr/sbin/mtr -v
 conda	m4	1.4.17--0	test $(echo "define(a, bbb)a" | m4) = "bbb"
 conda	samtools	1.3--1	samtools --version
 conda	cufflinks	2.2.1--py27_1	(cuffmerge --help 2>&1) | grep Options > /dev/null
+conda	tophat	2.1.0--py27_0	(tophat --version 2>&1) > /dev/null