Prepare patch for release

Author: hadley

DESCRIPTION

@@ -1,5 +1,5 @@
 Package: httr
-Version: 1.3.0.9000
+Version: 1.3.1
 Title: Tools for Working with URLs and HTTP
 Description: Useful tools for working with HTTP organised by HTTP verbs
     (GET(), POST(), etc). Configuration functions make it easy to control

NEWS.md

@@ -1,4 +1,4 @@
-# httr 1.3.0.9000
+# httr 1.3.1
 
 * Re-enable on-disk caching (accidentally disabled in #457) (#475)
 

cran-comments.md

@@ -8,40 +8,4 @@
 
 ## Revdepcheck results
 
-(This is a new semi-automated report from the revdepcheck package. Please let me know if there is anything I can to do improve it.)
-
-We checked 424 reverse dependencies (395 from CRAN + 29 from BioConductor) by running R CMD check twice, once with the CRAN version installed, and once with this version installed. We saw 5 new problems. We failed to check 12 packages. Issues are summarised below.
-
-### New problems
-
-Due to the nature of httr's dependencies, I believe that these new errors are due to random network/server failures. I informed all package maintainers about the problems on August 4, and ask them to double check.
-
-* censusr
-  checking examples ... ERROR
-
-* dataonderivatives
-  checking tests ...
-
-* oai
-  checking tests ...
-
-* RSocrata
-  checking tests ...
-
-* sparklyr
-  checking tests ...
-
-### Failed to check
-
-* ALA4R         (check timed out)
-* biomartr      (check timed out)
-* dataRetrieval (check timed out)
-* dynamichazard (failed to install)
-* GA4GHclient   (check timed out)
-* gmum.r        (failed to install)
-* googleAuthR   (check timed out)
-* hansard       (check timed out)
-* junr          (check timed out)
-* paxtoolsr     (failed to install)
-* rols          (check timed out)
-* TCGAbiolinks  (check timed out)
+This is a patch to fix an issue with interactive use of httr. It should not affect revdepchecks (and hence I have not run them).  Apologies for missing this problem in the inial release - unfortunately it's hard to test this code because it's designed purely for interactive use.