Hide "Create a New Team" button if user can't create teams
Merge pull request #1281 from jaysoffian/master

Compatibility fix for Oracle's mysql-connector-python
Remove is_managed (not present in form)
Fix collection version and score checks
Fix obvious bug
Revert "Fix event navigation in events with same timestamp"

This reverts commit 1db9af8e384dd43b20d3347162503c2e60173f63.

This has performance implications on reasonably sized installs so we need to do something more clever.
More correct javascript
Merge pull request #1282 from jaysoffian/hide-create-team-button

Hide "Create a New Team" button if user can't create teams
Cache all GroupMeta values
Load tags on group details async
More perf improvements to tags
Truncate chained exceptions down to (default) 25 values
Unused code
Correct exc_omitted
Simple test to ensure exceptions render
Correct closing tag
Switch exeptions to pre-wrap
Set word-break: normal
Style omitted frames
Add background and padding around traceback > p