Log Message:
Update to temporary-1.3

1.3
* Generated directory names are now based on random hex strings rather
  than PIDs.
* This got a major version bump as a courtesy to users who may depend
  on the specific form of generated names, but that form is not part
  of the API contract and should not be depended upon.

1.2.1.1
* Improve the docs

1.2.1
* Limit support to GHC 7.0+
* Add new functions: writeTempFile, writeSystemTempFile,
  emptyTempFile, emptySystemTempFile
* Make sure that system* functions return canonicalized paths
* Modernize the code base, add tests and documentation

1.2.0.4
* Update maintainership information
* Fix the docs