Start date hidden on issue form unless in Rails production mode.
Cleanup.
Add in more information about deploying.
- Bump the version number prior to the release later today.
- Include a first version of the changelog.
Clarify a few more things in writing.
Adding time_stamp column to working periods
Undoing previous commit
Adding pauses to action log
Saving due date in database instead of recalculating

Made changes so that the due_date field is no longer overridden by my
method and is now updated when any change is made that could affect it,
i.e. working period, sla priority and pause changes.
A few issue update changes

Added is_paused column to issues to help with producer sync.
Caused due date to be updated on issue save (to account for potential
priority change).
Got rid of Issue.all call in update_issue_due_dates methods.