v0.15.0a3 - Rename / move packages

via #408

Easier to type, less screen width, fits purpose better

• Moves:

  • libvcs.parse -> libvcs.url
  • libvcs.projects -> libvcs.sync

• Renames:

  • BaseProject -> BaseSync
  • MercurialProject -> HgSync
  • SubversionProject -> SvnSync
  • GitProject -> GitSync

Full Changelog: v0.15.0a2...v0.15.0a3