added estonian translation
allow <sub> and <sup> elements
updated estonian translation
If authentication is not enabled, /login should return true
Merge pull request #523 from kristiank/master

added estonian translation
Merge pull request #524 from hdhoang/allow-subscript-superscript

allow <sub> and <sup> elements
Merge pull request #528 from MTGap/css-tweaks

Entry CSS tweaks
Merge pull request #530 from yDelouis/loginWithoutAuth

API REST : /login should return true if auth is disable
update README.md
Merge branch 'master' of github.com:SSilence/selfoss
no entry padding on smartphone
Add updatetime to items table for sqlite
Add updatetime to items table for mysql
Add updatetime to items table for pgsql
Add REST API param for update time for items
Merge pull request #532 from yDelouis/restUpdatedItems

REST API : Get only items updated since given time
release 2.11
add prefix for mysql database update
update version
Merge branch 'master' into personal

Conflicts:
	daos/mysql/Database.php
	daos/mysql/Items.php
	daos/pgsql/Database.php
	daos/pgsql/Items.php
	daos/sqlite/Database.php