* Bootstrap v4 (#490)
* Upgrading original theme to use Bootstrap v4 and overall improve use of utility classes
* Fixing graph issues. Colors per team & cleaner hover
* The solves tab now shows relative time instead of absolute time
* Redesign admin theme
* Updating modals and changing form name from desc to description
* Moving CSS config from Pages to Config page
* Adding IP address count to statistics
* Move control of certain modals (files, flags, tags, hints) to challenges page
* Expanding size of config page
* Combining statistics and graphs pages
* Moving percentage solved to the statistics page instead of the admin challenges page
* Rename Keys.key_type to Keys.type (#459) (#478)
* Rename keys.key_type to keys.type (#459)
* Fixing previous migration to not be worried about key_type v type
* Fixing loading of challenge type plugins
* Switching from Handlebars to Nunjucks (#491)
* Switching from Handlebars to Nunjucks
* Allow admins to unlock hints before CTF begins and test that this is not allowed for regular users
* Authed only (#492)
* Adding authed_only decorator and adding next to url_for
* Adding a basic preview to hints (#494)
* Hints have a preview now for creating and updating hints. HTML and markdown are still allowed.
* Ezq (#495)
* Adding ezq as a simple wrapper around bootstrap modals
* Use tabs not spaces and remove gray background on inputs
* Adding title & draft to Pages. Making page preview open a new tab (#497)
* Adding title & draft to Pages.
* Making page preview open a new tab instead of render in the existing tab
* Draft pages cannot be seen without a preview
* Update check (#499)
* Add update_check function
* Notify user that a CTFd update is available in the admin panel
* Adding update_check tests
* Ratelimit (#500)
* Implementing a ratelimit function
* Fix error page formatting
* Add rate limiting tests
* Rate limit authentication functions and rate limit admin send email function
* Load user solves before we load challenges to avoid unstyled buttons (#502)
* Add a challenge preview (#503)
* Adding a challenge preview to the admin panel
* Change /admin/chals/<int:chalid> to /admin/chal/<int:chalid>
* Adding codecov (#504)
* Test coverage at https://codecov.io/gh/CTFd/CTFd
* Sendmail improvements (#505)
* Add get_smtp timeout, add sendmail error messages
* Adding more error handling to sendmail
* Adding Flask-Script (#507)
* Pause ctf (#508)
* Implement CTF pausing
* Test CTF pausing
* Fix loading challenges for users (#510)
* Fix loading challenges for users
* Temporarily switch themes in test
* Pause help text (#509)
* Adding pause help text
* Pages authed (#511)
* Adding authentication options to pages
* Adding tests for accessing pages while draft & auth_required
* Merging master into 1.1 (#513)
* Name the core theme and remove the original theme
* Adopting a challenge type layout from deckar01
* Move standard challenge modals into the plugin
* Migration to change challenge type id to a string
* Travis testing now builds with MySQL, SQLite, and Postgres
* Rework get_standings to use the row ID instead of the saved time because of differences in database time precision
Kevin Chung