Change root project name to "Bedework Sometime"

Root groupId has been changed to org.bedework.sometime in accordance,
but the sub-modules names have additionally not been changed at this
time. Major version has been bumped forward to 2.x.
Add README
Change artifactId from 'sometime' to 'bw-sometime'
Merge pull request #1 from nblair/branding

Change Branding for root of project, major version increment