Remove newline from package summary

Remove dvr- prefix from names of extras

Copyedit changelog and usage message

Fix DVRIPReader initialization

Include dvrip.cmd in distributions

Release memoryviews when done

Implement keepalive messages

Implement a 'dvr log' tool

Implement decoding of log data

Rename PerformOperation to DoOperation

Convert 'dvr reboot' to a standalone script

Convert 'dvr info' to a standalone script

Convert 'dvr find' to a standalone script

Convert 'dvr time' to a standalone script

Convert 'dvr cat' to a standalone script