Add get_pdf_text() and use that in assert_pdf_text()
Add get_pdf_text() and use that in assert_pdf_text()

seleniumbase/SeleniumBase,mdmintz/SeleniumBase,mdmintz/SeleniumBase,seleniumbase/SeleniumBase,seleniumbase/SeleniumBase,mdmintz/SeleniumBase,seleniumbase/SeleniumBase,mdmintz/SeleniumBase