Support OSGI compatible version calculation

Update VersionHelper to support OSGI compatible version numbers, namely:
	1.0.0.BUILD-SNAPSHOT
	1.0.0.M1
	1.0.0.RC1
	1.0.0.RELEASE

Version calculations for `calculateReleaseVersion` and
`calculateNextVersion` now recognizes this format as well as the
traditional Maven `*-SNAPSHOT` form.