Added Lorum Ipsum text for testing purposes

Tracker ID: http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=30565

This adds different Lorem Ipsum snippets to the main language file, so you can use these for testing purposes.
Like:
```
echo JText::_('JLORUMIPSUM_LONG');
```
Or:
```
<field name="test1" type="text" default="" label="JLORUMIPSUM_SHORT_1" description="JLORUMIPSUM_MEDIUM_1" />
<field name="test1" type="text" default="" label="JLORUMIPSUM_SHORT_2" description="JLORUMIPSUM_MEDIUM_2" />
<field name="test1" type="text" default="" label="JLORUMIPSUM_SHORT_3" description="JLORUMIPSUM_MEDIUM_3" />
```