Dockerfile specifies a version of Sick Beard
fixes #1: existing Sick Beard database is overwritten when the container starts
Upstream Merge - branch 'master' of https://github.com/timhaak/docker-sickbeard

Conflicts:
	Dockerfile
Revert "fixes #1: existing Sick Beard database is overwritten when the container starts"

This reverts commit 8a820b7f18fa0e7e1fa09c6ea60fdc3f971f95ff.
Sick Beard version is specified at top of Dockerfile (defaults to head of "master" branch)
Merge pull request #3 from ryankevans/feature-versioning

Feature versioning