Version 0.0.6

• Added support for publishing and subscribing with QoS 1
• Added support for reading from a file using -f
• Added support for reading from STDIN using -s
• Added support for publishing one message per line using -l
• Added support for subscribing to multiple topics
• Added timeout when waiting for packets
• Made Keep Alive configurable in mqtt-sn-pub
• Changed default keep alive for mqtt-sn-pub to 10 seconds
• Fix for displaying IPv6 addresses
• Improved debug error messages when connecting fails