Merge pull request #21 from ypcs/master

Improved documentation.
Merge pull request #22 from ypcs/master

Merge w/ development.
Merge branch 'master' of github.com:digabi/digabi-live

* 'master' of github.com:digabi/digabi-live:
Updated build scripts.
Updated changelog.
Merge branch 'master' of github.com:ypcs/digabi-live

* 'master' of github.com:ypcs/digabi-live:
  Use updated digabi.list, matches version in digabi-repository package.
  Use jessie as Digabi repository distribution.
Updated details about versioning.