v0.4.3, 2016-03-27 -- Add laparams parameter to __init__.
v0.4.2, 2016-02-07 -- Annotations bugfix.
v0.4.1, 2015-12-21 -- Annotations bugfix.
v0.4.0, 2015-12-21 --
    - Python 3 support.
    - Some changes to attribute formatting.
    - Fix handling of invalid XML characters.
v0.3.1, 2015-07-22 -- Annotations bugfix.
v0.3.0, 2015-06-26 -- Include PDF annotations in xml structure.
v0.2.7, 2014-09-22 -- Better Unicode text handling.
v0.2.6, 2014-07-05 -- Yet more doc info handling.
v0.2.5, 2014-06-29 -- Add Python 2.6 support; improve doc info handling.
v0.2.4, 2014-05-29 -- Fix unicode and page number bugs.
v0.2.3, 2014-05-15 -- Fix compatibility with new pdfminer.
v0.2.2, 2013-12-04 -- Disable cache by default.
v0.2.1, 2013-11-30 -- Fix compatibility with new pdfminer.
v0.2.0, 2013-11-03 -- Bug fixes, compatibility with lxml 3.0, caching.
v0.1.0, 2012-04-13 -- Initial release.
