Log Message:
(sysutils/R-later) Updated 1.0.0 to 1.2.0

## later 1.2.0

* Closed #138: later is now licensed as MIT. (#139)

* Closed #140: Previously, the event loop stopped running if the R
  process was forked. (#141)

* Closed #143: Packages which link to later no longer need to take a
  direct dependency on Rcpp, because `later.h` no longer includes
  `Rcpp.h`. (#144)

* Removed dependency on the BH package. C++11 is now required. (#147)

## later 1.1.0.1

* Private event loops are now automatically run by their parent. That
  is, whenever an event loop is run, its children event loops are
  automatically run. The `create_loop()` function has a new parameter
  `parent`, which defaults to the current loop. The auto-running
  behavior can be disabled by using `create_loop(parent=NULL)`. (#119)

* Fixed #73, #109: Previously, later did not build on some platforms,
  notably ARM, because the `-latomic` linker was needed on those
  platforms. A configure script now detects when `-latomic` is
  needed. (#114)

* Previously, `execLaterNative` was initialized when the package was
  loaded, but not `execLaterNative2`, resulting in a warning message
  in some cases. (#116)