- bugfix and enhancement
  Because several recent problems with template inheritance the {block} tag compiler has been rewriten
   - Error messages shown now the correct child template file and line number
   - The compiler could fail on some larger UTF-8 text block (forum topic 24455}
   - The {strip} tag can now be placed outside {block} tags in child templates (forum topic 24289}
- change SmartyException::$escape  is now false by default
- change PHP traceback has been remove for SmartyException and SmartyCompilerException


git-svn-id: http://smarty-php.googlecode.com/svn/trunk/distribution/libs@4769 9dce5a81-9a42-0410-99e4-3799d3902e7f