updated copyright message; included LGPL for 'cora' and a warranty

warning.

COPYRIGHT

@@ -1,13 +1,20 @@
 All parts of the software known as YaCy are covered under the 
-terms of the GNU General Public License as published by the 
+terms of the GNU Lesser General Public License (files in source/net/yacy/cora) or
-Free Software Foundation; either version 2 of the License, or 
+the GNU General Public License (all other files)  as published by the
-(at your option) any later version unless stated otherwise.
+Free Software Foundation; either version 2 of the License, or  (at your option)
+any later version unless stated otherwise.
 
 You should have received a copy of the GNU General Public License
 along with this software; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
-People who have contributed to this software in addition to those
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-mentioned in the source code or other files belonging to YaCy:
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-Jakub Steiner (bookmarkpriv.png, bookmarkpub.png)
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.