Fix type in "what's new in 3.2" section

Issue: SPR-10283
"packagesToScan" feature for Hibernate 3 and Hibernate 4 detects annotated packages as well

Issue: SPR-7748
Issue: SPR-10288
Add HttpPutFormContentFilter note to documentation

Update reference guide to include a note about the use of
HttpPutFormContentFilter in combination with @RequestBody
MultiValueMap and HttpEntity.

Issue: SPR-8415
Merge pull request #230 from avbentem/patch-1

# By Arjan van Bentem
* patch-1:
  Add HttpPutFormContentFilter note to documentation
Add setOutputStreaming option for HTTP factory

Add setOutputStreaming on SimpleClientHttpRequestFactory to allow the
disabling of 'output streaming' mode on the underlying connection so
that authentication and redirection can be handled automatically.

Issue: SPR-9617
Javadoc polish
Potential fix for SPR-10270