Difference between r1.17 and the current

#title Elton Mayo
[[Attachment(elton-mayo-experimento-de-hawthorne1.jpg,width=200,caption="Elton Mayor",selflink,align=left)]][[Attachment(hawthorne-departamento-de-montagem-de-cabos-1925.jpg,width=300,caption="Elton Mayor",selflink,align=left)]][[Attachment(elton-mayo-hawthorne-foto-do-grupo-da-pesquisa.jpg,width=300,caption="Elton Mayor",selflink,align=left)]][[Attachment(hawthorne-trabalhadoras-em-1945.png,width=300,caption="Hawthorne. Trabalhadoras em 1945",selflink,align=left)]]
http://news.harvard.edu/gazette/story/2011/12/rethinking-work-beyond-the-paycheck/
[[Attachment(Hawthorne10.jpg,width=300,caption="Elton Mayor and Fritz J Roethlisberger in 1940",selflink,align=left)]]
[[Attachment(Hawthorne3.jpg,width=300,caption="Hawthorne study",selflink,align=left)]]