eric/Chinese-daydayup: I formatted the lessons from http://www.daydayupchinese.com/ to build an audio epub and to extract the sentences and the vocabulary.

Eric Streit ca76d1fd27 reset du dépôt		%!s(int64=6) %!d(string=hai) anos
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Elementary-2.epub	ca76d1fd27 reset du dépôt	%!s(int64=6) %!d(string=hai) anos
Elementary-2.html	ca76d1fd27 reset du dépôt	%!s(int64=6) %!d(string=hai) anos
Elementary-2.odt	ca76d1fd27 reset du dépôt	%!s(int64=6) %!d(string=hai) anos
Elementary-2.txt	ca76d1fd27 reset du dépôt	%!s(int64=6) %!d(string=hai) anos