• core/bug_api.php
  (bug_update): new function
  (bug_get): new function to get a bug object
  (bug_clean): new function to prepare a bug object for db insertion
  (BugData): new class to act as a data struct for bug info
• bug_update.php: cleanup to use new apis

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1597 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9