New Year Release

Mainly productivity changes:

• added direct update of kernel vars via CMD similar to Git. For example:

  $ ck setup kernel --var.default_license="See CK LICENSE.txt for licensing details"
  $ ck setup kernel --var.default_copyright="See CK COPYRIGHT.txt for copyright details"
  $ ck setup kernel --var.default_developer="cTuning foundation"
  $ ck setup kernel --var.default_developer_email="[email protected]"
  $ ck setup kernel --var.default_developer_webpage="http://cTuning.org"

• added -f flag to force removal of entries (i.e. ck rm x:y -f) to be compatible
  with bash rm -f ...

• added JSON sorting when viewing entries from CMD (via ck load x:y)