Log Message:
Update to 3.49

Upstream changes:
3.49 - 2015-03-24

- added: the DTD_base option to XML::Twig new, that forces XML::Twig to look
  for the DTD in a given directory
  thanks to Arun lakhana for the idea

- fixed: XML::Parser 2.43 caused a failure in the tests due to a change in
  its behaviour when die-ing.

- fixed: prevent PAUSE from trying to index packages that are only used
  for monkey patching (to re-use XML::XPath as the XPath engine for
  XML::Twig::XPath).  Will also prevent UNAUTHORIZED flag on metacpan.
  patch sent by Graham Knop

- fixed: RT #96009
  keep_atts_order => 0 behaviour. Spotted by Dolmen
  https://rt.cpan.org/Public/Bug/Display.html?id=96009

- fixed bug RT #97461
  wrong error message was returned calling parse on an invalid filehandle
  Thanks to Slaven Rezic for the bug report and test case
   https://rt.cpan.org/Public/Bug/Display.html?id=97461

- fixed: RT #98801
  COMPATIBILITY WARNING
  inconsistency between simplify and XML::Simple for empty elements (including
  elements with start and end tags but no contents)
  the XML::Simple behaviour is to map them to an empty hash, not an
  empty/undef scalar (depending of whether the element is a PCDATA or not)
  as was the case in previous versions of the module.
  This has the potential to break some existing code, but simplify should be
  strictly the same as XML::Simple's XMLin
  Thanks to Vangelis Katsikaros for the bug report and test case
    https://rt.cpan.org/Public/Bug/Display.html?id=98801