General Herald refactoring pass

Summary:
Who can delete global rules?: I discussed this with @jungejason. The current behavior is that the rule author or any administrator can delete a global rule, but this
isn't consistent with who can edit a rule (anyone) and doesn't really make much sense (it's an artifact of the global/personal split). I proposed that anyone can delete a
rule but we don't actually delete them, and log the deletion. However, when it came time to actually write the code for this I backed off a bit and continued actually
deleting the rules -- I think this does a reasonable job of balancing accountability with complexity. So the new impelmentation is:

• Personal rules can be deleted only by their owners.
• Global rules can be deleted by any user.
• All deletes are logged.
• Logs are more detailed.
• All logged actions can be viewed in aggregate.

Minor Cleanup

• Merged HomeController and AllController.
• Moved most queries to Query classes.
• Use AphrontFormSelectControl::renderSelectTag() where appropriate (this is a fairly recent addition).
• Use an AphrontErrorView to render the dry run notice (this didn't exist when I ported).
• Reenable some transaction code (this works again now).
• Removed the ability for admins to change rule authors (this was a little buggy, messy, and doesn't make tons of sense after the personal/global rule split).
• Rules which depend on other rules now display the right options (all global rules, all your personal rules for personal rules).
• Fix a bug in AphrontTableView where the "no data" cell would be rendered too wide if some columns are not visible.
• Allow selectFilter() in AphrontNavFilterView to be called without a 'default' argument.

Test Plan:

• Browsed, created, edited, deleted personal and gules.
• Verified generated logs.
• Did some dry runs.
• Verified transcript list and transcript details.
• Created/edited all/any rules; created/edited once/every time rules.
• Filtered admin views by users.

Reviewers: jungejason, btrahan

Reviewed By: btrahan

CC: aran, epriestley

Differential Revision: https://secure.phabricator.com/D2040