Prevent jumping content on showing add/edit link images on mouseover
by setting position of .hoveractor to relative and position of hoverreactor to absolute top right.
Send email functions changed to use templates using new function getTemplateContent().
Bigger change (sql) in churchservice_openservice_rememberdays().
Content of functions informLeaderAboutNewGroupMember(), ...EditedGroupMember()and ...DeletedGroupMember()put into new function informLeaderAboutMembershipChange()

several little changes, fixes (f.e. regarding user simulation), renaming, speaking constants
Merge branch 'master' of https://github.com/churchtools/churchtools_basic
Merge branch 'master' of https://github.com/churchtools/churchtools_basic
some corrections to last commits
Merge branch 'renarena-master'

Conflicts:
	system/churchcal/churchcal.php
	system/churchcal/churchcal_db.php
	system/churchcore/churchcore_db.php
	system/churchcore/resources/messages/churchcore_de.xml
	system/churchcore/resources/messages/churchcore_en.xml
	system/churchcore/resources/messages/churchcore_fr.xml
	system/churchdb/churchdb.php
	system/churchdb/churchdb_ajax.php
	system/churchresource/churchresource_db.php
	system/churchservice/churchservice.php
	system/churchservice/churchservice_ajax.php
	system/churchservice/churchservice_db.php
	system/includes/db_updates.php