[O] [PATCH] bug fix in ob-groovy.el

The problem was reported in https://stackoverflow.com/questions/48893994/groovy-in-org-mode-babel I reproduced the problem locally. The basic error message is Caught: java.lang.ClassFormatError: Illegal class name "groovy-31624d60$isGolden" The problem is the dash. The patch replaces

[O] Why my config about org-log-reschedule didn't work?

I think if I set the variable (setq org-log-reschedule (quote time)) When I change the schedule time of a task, a drawer will be created. But nothing happened as I did so. Even if I setuped a new emacs, with the only conifg line above. It still did not work. What did I missed? Thank you in