Changed *.lte to *.dwoo for KIT2 compatibility
Changed *.lte to *.dwoo

KIT2 compatibility
Updated copyright information
Prepared upgrade.php for Release 0.17
Release 0.17

added missing translation for fieldset legends
improved SQL query for the configuration dialog
updated precheck.php to actual versions
renamed all templates from *.lte to *.dwoo (KIT2 compatibility)