JIRA: https://jira.spring.io/browse/INTSAMPLES-138
* Upgrade to Boot 1.2, which is based on the SI 4.1
* Upgrade to SF 4.1.1
* Fix `feed` sample to use new `Rome` dep. from SI
* Fix deprecations for `@Payload`, `@Header` etc.
* Fix mongo` sample deprecation warn
- PR Comments
- Switch to Jackson2
- Fix oxm config
Polishing
INTSAMPLES-127 Update to SI 4.0.0.RC1
INTSAMPLES-127 Remove Servlet Dependency
travel sample; see INT-3350.
INTSAMPLES-127 Update Samples to SI 4.0.0
JIRA: https://jira.spring.io/browse/INTSAMPLES-127
Created `maint` branch for ongoing SI 3.0.x samples.