Downloads and aggregates data for Brazilian government issued bonds directly from the website of Tesouro Direto < http://www.tesouro.fazenda.gov.br/tesouro-direto-balanco-e-estatisticas>.
- Fixed bug in read.td.files (it was not reading data after 2012 because of change of output type given switch from xlsx:read.xlsx to readxl::read_excel)
- Now using readxl::read_excel, a better excel reader, FASTER and without the java requirements - Additional error checks
- Added a test for internet connection - Added a new option for overwriting or not the downloaded excel files (saves a lot of time for large batch downloads!) - Fixed typos and improved the text in the vignette