Update to 0.76

Upstream changes:
0.76 2016-07-06
* Added 'reset_macros' option to Text::BibTeX::File, in order
  to remove all defined macros (except months)

0.76_02 2016-07-05
* Fix issue with binmode not being copied in Clone method.
* Make month abbreviations available always, and not only when
  using Text::BibTeX::Bib.
* Added docs to supported options for Text::BibTeX::Entry.

0.76_01 2016-07-04
* Solved nasty bug when using lvalues as parameters (substr).
* Added tests.

0.75 2016-07-03
* Stable version with bytes/utf-8 support.

0.75_05 2016-07-02
* Get 5.8.x back aboard;

0.75_04 2016-07-01
* Fixed reference to empty function name;

0.75_03 2016-06-30
* Rename split_list to isplit_list, and creaed split_list wrapper;
* Added normalization option;

0.75_02 2016-06-25
* Minor fix for some perl version parsing problems.

0.75_01 2016-06-24
* Added binmode option. Should allow unicode handling directly.

0.74 2016-06-15
* Get perl 5.8.x back.

0.73 2016-06-14
* Change some documentation in order to use ->new method, instead
  of older 'new Class()' approach;
* Add sensible default values to Text::BibTeX::NameFormat to reduce
  the amount of segmentation faults for users forgetting arguments.

(wen)