Log Message:
(math/R-rstudioapi) Updated 0.13 to 0.14

# rstudioapi 0.14 (UNRELEASED)

* `documentPath()` now marks the encoding of file paths as UTF-8. (#257)

* `getSourceEditorContext()` gains the `id` argument, to be used to request
  the editor context for a document with an already-known ID. (#251)

* Added `documentOpen()`, for opening a document in RStudio and optionally
  navigating the cursor to a particular point in the file. The method is
  synchronous and returns the document ID upon completion.

* Fixed an issue where `rstudioapi::askForSecret()` would erroneously fall back
  to using `rstudioapi::askForPassword()` during Knit.

* Added `registerCommandCallback`, `registerCommandStreamCallback`, and
  `unregisterCommandCallback`, used to execute a callback after an IDE command
  is executed.