Allow all /my URLs

Previously, URLs like /my/activity/posts were denied. This change allows those URLs.
FIX: New action arriving in stream via message bus
FIX: topics in private sub-categories were visible to everyone on the categories page
ES6: Just a couple of views
misc log in vs. sign in copy fixes
improve hint on admin user search
normalize to search.title for search help
Merge pull request #2444 from riking/my-fix

Allow all /my URLs
BUGFIX: trust_level_0 group not including trust_level_1
BUGFIX: manual trust level change not adding user to groups
BUGFIX: system not in correct trust level groups
Fix broken merge
BUGFIX: keeping noscript in DOM
BUGFIX: icons all red
BUGFIX: setting title to aggressively
FEATURE: register_custom_field_type, support bool and integer
BUGFIX: use plugin outlet instead of custom code
BUGFIX/FEATURE: call out context for search.
BUGFIX: CSS animation based spinner was buggy

There seems to be no sane way to get the CSS spinner to work without
hosing the stacking context. Use gif based spinner.
BUGFIX: use trust_level_0 cause it is less than 15 chars
BUGFIX: broken specs
category numbers a wee bit too large

twss