v0.8.0

Added

• created a new sub-command manual that will allow to create "completed" time entries
  in a more easy way.
• created a new flag --when-to-close on in and clone to set close time for the
  time entry being started (if wanted).

Changed

• clone sub-command allows the flag --no-closing and will have the same flags as
  in to set start and end time (if wanted)
• in sub-command will always stops time entries that are open in the moment of the
  sub-command call.
• some helps and messages were improved to better describe what the command does

Removed

• flags --trello-token and --github-token were removed because they are not
  currently used and may give false impressions about the cli

Fixed

• some code for the in and clone sub-commands were duplicated, now they are in newEntry
  function that they both used.