fix complex relationships between version and package/extends tags. Fix all bugs found in unit testing
fix complex relationships between version and
package/extends tags.
Fix all bugs found in unit testing


git-svn-id: 4b064e69dc630d28214c1e1442d27300cccf8e9a@172075 c90b9560-bf6c-de11-be94-00142212c4b1

DQNEO/PEAR_Exception