Increase the level of JUL logging calls in the tests to try to fix CI

The CI build is failing, but, for some reason, the same tests are
working fine on developer machines. This commit increases the level
at which the logging calls are being made to severe in the hope that
some CI-specific configuration is filtering out the calls when
they're at info level.
Exclude log4j in a couple of places (see gh-1660)

also rename spring-cloud starter
Add @SuppressWarnings('serial')
Add 'Connectors' to project name
Add test for gh-1776
Remove redundant reference to renamed spring-boot-starter-cloud module
Remove missing module from pom (thanks Eclipse)
Ignore JUL logging tests that only fail on Bamboo
Rename spring-boot-starter-cloud in spring-boot-dependencies

Fixes #1781
Upgrade to Spring Batch 3.0.2.RELEASE

Closes gh-1782
Merge branch '1.1.x'

Conflicts:
	spring-boot-dependencies/pom.xml
Fix a typo in error.whitelabel.enabled
Merge pull request #1763 from sdeleuze/whitelabel-typo

* whitelabel-typo:
  Fix a typo in error.whitelabel.enabled
More testing of context hierarchy creation

There actually isn't anything much we can (or should) change here. Spring always
copies PropertySources and profiles down into the child context when you set its parent.
That seems sensible. So you can add a new profile in a child context but it will always
"inherit" from its parent.

See gh-1776
Add email support

This commit adds a new starter to auto-configure a MailSender when the
necessary classes are present and when the property "spring.mail.host" is
set.

The auto-configuration also accepts any arbitrary properties that
JavaMail might need using the "spring.mail.properties" prefix.

Fixes gh-1760
Add missing close
Align new JavaMail dependencies with Spring IO Platform

Spring IO Platform already provides dependency management for JavaMail.
This commit updates Boot’s new JavaMail dependency management to align
with the Platform, thereby allowing the Platform to inherit Boot’s
dependency management instead of defining its own.
Allow multiple templateLoaderPaths to be configured for FreeMarker

Closes gh-1767
Update email addresses in pom files to use new pivotal.io domain

Closes gh-1774
Merge branch '1.1.x'