M manage_custom_field_edit_page.php

• Fixed 0002938: Double quotes not handled correctly in manage_custom_field_edit_page.php

M core/compress_api.php

• Added checks to detect cases where compress_start() is called twice, or
  compress_stop() without compress_start().

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@1890 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9