prepare release

Author: Enchufa2

NEWS.md

@@ -0,0 +1,3 @@
+# RcppXPtrUtils 0.1.1
+
+- Fix error messages (#2).

cran-comments.md

@@ -1,12 +1,14 @@
 ## Patch release
 
+Fixes some error messages.
+
 The maintainer's address has changed. It is the same account, just a different
 alias. I'm sending confirmation from the previous address to CRAN-submissions.
 
 ## Test environments
 
-* Fedora 26 + GCC + clang (local), R 3.4.1
-* Ubuntu 12.04 + GCC (on travis-ci), R 3.3.3, 3.4.0, devel
+* Fedora 29 + GCC + clang (local), R 3.5.1
+* Ubuntu 14.04 + GCC (on travis-ci), R 3.4.4, 3.5.1, devel
 * win-builder, R devel
 
 ## R CMD check results
@@ -15,4 +17,4 @@ There were no ERRORs, WARNINGs or NOTEs.
 
 ## Downstream dependencies
 
-There are currently no downstream dependencies for this package.
+Shouldn't be affected by this minimal patch.