Remove redundant ini checks
Add rcube_db::escapeSimple() method for backward compat.
CS fixes (converted tabs to spaces)
Fix links to PHP PDO drivers manual
Fix typo simpleEscape -> escapeSimple
Add rcube_db::escape() method, fix escapeSimple() to use escape instead of quote()
Fix typos

Allows the new_user_dialog plugin to work properly
Fix handling of deprecated boolean value of reply_mode option (#1489052)

Conflicts:

	CHANGELOG
Fix DB error when creating a new contact and a group is selected (#1489051)
Fix list of required configuration options (#1489055). Removed support_url, and db_table_*
Add 0.9.0 to releases list
Fix a typo
Fix unintentional messages list jumps on click in Internet Explorer (#1489056)
Fix incorrect handling of leading spaces in text wrapping
Fix another text wrapping issue
Apply various IPAX fixes and add cleanup.sh script
Add IPAX configuration files
Temporary CSS fix