improve churchreport php files
remove forgotten classes from churchcore_db.php
rename file CTSqlException to match class name
improve churchresource php files, translate texts
improve churchwiki php files
improve files from /includes, rename body.php to footer, delete unused forms.php
improve php files in main, add two sw images to use for improve entry of group meeting participation
renamed readVar/readConf to getVar/getConf
Merge branch 'master' of https://github.com/churchtools/churchtools_basic

system/churchcore/functions.php moved to system/includes/functions.php
more formatting, commenting, ...
changed several queries to use named parameters
add constant for max mails
fix error in handleUpload()
formatting, some renaming, mainly in churchcore, churchdb
fix some errors with arrays in t()
translate churchauth/admin form texts
Formatting, translating, var renaming in churchcal, churchdb (mainly sql), churchservice.
Set $ajax == true in CTAjaxHandler to prevent error notes in json results.
Add category as class c$id (f.e. c1) to listview (eventview.js) to allow category dependent styling.
formatting (mainly sql), ... in churchdb, churchresource
set $config[site_name] to default value Churchtools in start.php if empty, remove default value on other occurences
fix disappeared profile links in user menu, add class c$id (f.e. c1) to event list in calendar to allow category dependent styling of events in embedded calendars.
formatting, commenting, ...  churchcore, churchdb (with class files)
formatting, translating, ... in includes, main; rework language files
Add true Links to "ical-URL" labels beside the text urls for ical abonnements in churchcal and churchservice.
Merge branch 'renarena-master'

Conflicts:
	system/churchcal/churchcal.php
	system/churchcore/churchcore_db.php
	system/churchcore/classes/CTAuthModule.class.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_db.php
	system/churchservice/churchservice.php
	system/churchservice/churchservice_ajax.php
	system/includes/db_updates.php
	system/includes/header.php
	system/main/admin.php
	system/main/home.php