Updated optional dependencies to most recent minor versions
Update org and repo info in gradle build config

Issue: SPR-11213
Fixed assert in setAspectJAdvisorFactory()

Issue: SPR-11330
Exposing AspectJ 1.7.4 to users, only using AspectJ 1.8.0.M1 for ajc in our build

Issue: SPR-11273
Allow setting Cookie header

Issue: SPR-11332
Add section on test STOMP/WebSocket applications

Issue: SPR-11266
Fix typo in reference

Issue: SPR-11311
Fix issue in DefaultUserDestinationResolver

DefaultUserDestinationResolver now uses the session id of
SUBSCRIBE/UNSUBSCRIBE messages rather than looking up all session id's
associated with a user.

Issue: SPR-11325
Added info-level logging for default unit detection

Issue: SPR-11333
Consistent evaluation of empty theme names to default theme name

Issue: SPR-11128
Locale/ThemeChangeInterceptor alignment and javadoc polishing

Issue: SPR-11128
Resolve native header values with @Header

The @Header annotation in spring-messaging now resolves values from the
nested "nativeHeaders" map as well as top-level header map values.

In case of ambiguity (a value that exists in both), the top-level map
value is used and a warning message is printed. This is unlikly in most
cases but can be resolved by prefixing the header value with
"nativeHeadres.myHeader".

Issue: SPR-11326
Fix warnings in HeaderMethodArgumentResolver
Roll back jexcelapi from 2.6.12 to 2.6.3

JExcelAPI 2.6.12 appears to be causing ArrayIndexOutOfBoundsException
with the build. Rolling back to the earlier version for now