add of content_listevents plugin
eventslist-model: altered getItem function, REF #175
added 3.0.4 update sql
module-teaser: removed output of blank images, FIX #174
editevent: removed span, REF #167
module: wide, changed display of blank image, REF #174
install-script: added dropdown.js to delete function

the dropdown is not needed anymore
model-event, FIX #178
jem-css: added/changed some classes

it will be changed some more in the future
calendar-css: added/changed some classes
calendar.css: added some classes
jem.css: some changes
css: more classes/changes

clean up will be done later. for now classes have been added to get
things viewable within different templates. the image-upload will also
be sorted later
altered css
event-form: added class inputbox to recurrence-weekday
attendees-view: removed clearfix

it was unneeded
events-view, backend: fix #180
changed calendar.css
calendar-view: changed style variable
added option to not link title when description is empty, REF #182