- moved the download dir from /var/cache/ece-install to
  /var/cache/escenic/ece-install to keep it in sync with the other
  directories.
- use the escenic_log_dir and escenic_cache_dir when setting the
  ece-install specific log and download dir fields.
- ece-deloy will now exit with code 1 if no parameters are passed to
  it (in addition to other sanity checks).
- ece-import now uses common-os:assert_commands_available instead of
  its local function check_pre_requisites. DRY here we come!
- added BASH auto completion for ece-deploy, ece-import and ece-install

- included the BASH auto completion of ece-deploy and ece-import in
  the escenic-content-engine-scripts package

- included the BASH auto completion of ece-install in the
  escenic-content-engine-installer package
- when auto completing ece-deploy commands, the user will get
  'http://' as the auto completion if he/she does TAB TAB after
  --conf and/or --ear
- fixed a wee error in ece-deploy where you'd get errors if there were
  no publication specific web app contexts.
- added notice on why we're skipping publication resource update