moved xml-description calendar-module, FIX #611
altered tooltip default value calendar-module

The thing is that the default value is not being translated so the text
entered is the text being shown. In this case it was displaying
"mod_jem_cal_event". To make it nicer the values have been removed now.
bit of cleanup (front, several files)
bit of cleanup, several files (front)
altered some language strings of settings-view
removal of obsolete $access2 variable
removed obsolete functions from helper (front)
removed obsolete code (custom tooltip) from calendar.js
Revert "removal of obsolete $access2 variable"

This reverts commit fac5abdb39bb4077d06937cc546732e303b425ba.
added getAccessLevelOptions function back, REF #614
cleanup
added size to input geocomplete
removed width of geostyle.css
renamed cleanup to housekeeping

we were referring to the view as housekeeping so renamed it.
adapt frontend titles and headings, REF #566

altered frontend view event (change done by Hoffi)
adapt frontend titles and headings, REF #566 + cleanup,etc..

added meta-changes done by Hoffi. as the merge request was not
succesfull the changes have been added manually. Doing so did also
decapitalize JEM to jem + do a little bit of cleanup.
added featured img + altered jemhtml
fe category view: show pageheading (issue #616)

In case there is no direct menu item for that view show page heading (= category name) always.
Merge branch 'develop' into feature/page-heading

Conflicts:
	site/views/attendees/tmpl/default.php
	site/views/categories/view.html.php
	site/views/category/view.html.php
	site/views/day/tmpl/default.php
	site/views/editevent/tmpl/choosevenue.php
	site/views/editevent/tmpl/edit.php
	site/views/editevent/view.html.php
	site/views/editvenue/tmpl/edit.php
	site/views/editvenue/view.html.php
	site/views/event/view.html.php
	site/views/eventslist/view.html.php
	site/views/myattendances/tmpl/default.php
	site/views/myvenues/tmpl/default.php
	site/views/search/tmpl/default.php
	site/views/weekcal/tmpl/default.php
	site/views/weekcal/view.html.php