Set some php ini settings if possible
Backporting: Fix HTML entities handling in HTML editor (#1488483)
- Fix (workaround) delete operations with some versions of memcache (#1488592)

Conflicts:

	CHANGELOG
	program/include/rcube_session.php
Backported some recent improvements to LDAP addressbook
Merge branch 'release-0.7' of github.com:roundcube/roundcubemail into release-0.7
Added separate From and To columns apart from smart From/To column (#1486891)

Conflicts:

	CHANGELOG
	program/steps/mail/check_recent.inc
	program/steps/mail/func.inc
	program/steps/mail/list.inc
	program/steps/mail/mark.inc
	program/steps/mail/move_del.inc
	program/steps/mail/pagenav.inc
	program/steps/mail/search.inc
	skins/larry/mail.css
	skins/larry/templates/mail.html
	skins/larry/ui.js
Add fix for http://pear.php.net/bugs/bug.php?id=18819
Fixed issue with DBMail bug [http://pear.php.net/bugs/bug.php?id=19077] (#1488594)

Conflicts:

	plugins/managesieve/Changelog
Update changelog & bump version
Merge branch 'release-0.7' of github.com:roundcube/roundcubemail into release-0.7
Fix so subscribed non-existing/non-accessible shared folder can be unsubscribed

Conflicts:

	CHANGELOG
Fix lower-casing email address on replies (#1488598)

Conflicts:

	CHANGELOG
Lower the limit of folders list size (to 100, 25 for IE) when the names abbreviation is in action
Fix post-filtering vlv results, fixes warning "mb_strtolower() expects parameter 1 to be a string, array given"

Conflicts:

	program/include/rcube_ldap.php
Workaround possible PHP Fatal error:  Class 'PEAR' not found
Remove duplicates from get_col_values() result in flat mode
fix call to MDB2::isError for MDB2 2.5.0b4
Update changelog
Backported commit 1078a6f0993a4243efe5205f79cbace97baa2463 to 0.7 release branch
Merge branch 'release-0.7' of github.com:roundcube/roundcubemail into release-0.7