Log Message:
(devel/R-fastmap) Updated 1.1.0 to 1.1.1

fastmap 1.1.1
=============

* Updated hopscotch-map library to 2.3.0.

* Closed #24: Added a `$clone()` method to `fastmap`. (#26)

* Fixed #27: If a `fastmap` object has no holes in the lists storing keys
  and values, and then it is serialized and then unserialized,
  the new `fastmap` would contain zero items. (#28)

* Faster implementations of `fastmap` `$keys()` and `$as_list()` methods.