v0.1.6

Add Docker usage

v0.1.5

• fixed a bug of processing multiline output from sra-stat

v0.1.4

• fixed a bug of stdout option, now status messages are sent to stderr

v0.1.3

• Changed default tmpdir/outdir to current working directory

v0.1.2

• fixed error on version info output
• fixed error on help info output
• check if prerequisites are installed before running
• fixed error messages

v0.1.1

Minor bugs are gone.