FEATURE: bump upload size to 3 megs
FIX: dupe protection is API only now

make optional later on (was introduced for wordpress plugin)
Email field should be type=email
Added some style to email fields
copyedit pass on all Site Settings
remove title_sanitize setting
FEATURE: Allow admins to disable specific badges
FIX: user about me editor too wide on mobile
FIX: allow selection of no title
Merge pull request #2539 from iamntz/patch-1

Added type=email on register field
FIX: BBCode sanitization and tests
FIX: don't mess with fixtures when running the specs
FEATURE: disposable invite tokens
Merge pull request #2538 from techAPJ/patch-1

FEATURE: disposable invite tokens
support for EC2 IAM roles with Amazon S3 file store/backup
refactor multiple instances of S3 key check logic to single variable
FEATURE: Require Javascript to activate an account via email link
FEATURE: add site setting leader_links_no_follow to control whether users with trust level 3 or higher have nofollow on their links
FIX: Work with phpBB import style links with ellipsis
FIX: Combobox wasn't matching selected value properly with value of 0