support for EC2 IAM roles with Amazon S3 file store/backup
refactor multiple instances of S3 key check logic to single variable
guard against permission denied errors
reading from /proc/<pid>/smaps is not available inside of Docker container
phpbb category names can be longer than 50 chars and are rejected during import
Update DEVELOPMENT-OSX-NATIVE.md
Fix: messages imported in wrong order
Merge pull request #2619 from jcowhigjr/patch-1

Update DEVELOPMENT-OSX-NATIVE.md
Merge pull request #2618 from martykube/phpbb_import_category_name_too_long

phpbb category names can be longer than 50 chars and are rejected during...
Merge pull request #2620 from Elberet/smf2-import

Fix: messages imported in wrong order
FEATURE: dynamically load invites
Merge pull request #2617 from techAPJ/patch-2

FEATURE: dynamically load more invites
TWEAK: Sum new and unread in the site map category list
FIX: Clicking on "view latest topics" in a forum with few topics was
broken.
FIX: Category logos were improperly sized on mobile
FEATURE: restructure notification HTML layout
add Building Your Community section to Quick Start
FIX: catch specific exception
FIX: don't maintain list ordering when grabbing topics, trust server
FIX: system badges where created under id 100
FIX: reverse insert order when grabbing new topics