Closes #1120

The original fix for gh-1293 (commit 05e6af23) caused test failures due
to the fact that Spring Boot's MappingJackson2HttpMessageConverter was
added before Spring's default StringHttpMessageConverter.

This commit changes the HttpMessageConverters logic so that additional
converts are added just before any default converter of the same type.
This allows additional converters to be added whilst still retaining
the sensible ordering of the default converters.

Fixes gh-1293

It was incorrect to simply replace existing instances because you can't
tell from the instance which media types and java types it supports. This
fix just prepends the custom converters so they get higher priority.

Fixes gh-1293

Since Spring 4.0.4, it's now possible to use both classes and
locations to provide a test's configuration.

Closes #1300

Closes #1299

Previously the server was started to make the ServletContext
available, then, to prevent requests from being handled before the
application context had been started, the connectors were stopped.
Once application context startup had completed, the connectors were
then started again. In addition to being somewhat inefficient, this
caused problems on FreeBSD where stopping the connector didn't free
up the port quickly enough for the subsequent start to then be able
to bind to it.

This commit updates the Jetty startup logic to be closer to the logic
that's used for Tomcat. Before the server is started, the configured
connectors are cached and then removed. The server is then started
without any connectors. Once application context startup has
completed, the connectors are reinstated and started.

Fixes #968

Often this change will not be important because you are binding to
a bean with strongly typed properties. A bean with a Map property,
on the other hand, won't oytherwise be able to reason about the
permitted keys so it will miss any non-enumerable property sources,
including composites whose nested sources are themselves enumerable.

Fixed gh-1294

Both Tomcat and Jetty can now be configured to use SSL via the
environment (typically application.properties or application.yml)

Closes #1084

This commit changes the query in MongoHealthIndicator from serverStatus to buildInfo to avoid unprivileged access and corresponding errors.

fixes #1289

This commit changes the query in MongoHealthIndicator from serverStatus to buildInfo to avoid unprivileged access and corresponding errors.

fixes #1289

With this change I got a simple Eclipselink version of the data-jpa
sample working. I'll push that when I get time to research it a bit more
(I needed to set up a Java agent so either that might be a problem
for our integration tests if we can't work around it).

Fixes gh-1268.

Previously any custom http code mapping would remove the default mappings. With this commit the behaviour is changed so that default mappings will stay if a custom mapping is registered. Certainly a default mapping can be overridden.

fixes #1264

Added $JAVA_OPTS variable to the sample Heroku Procfile.
If this is left out it can cause memory issues when the app starts.

Fixes gh-1266

This commit fixes some inconsistent or outdated keys in the
documentation. More specifically:

* allowSessionOverride is no longer a template parameter
* templateEncoding has been renamed to charSet
* Groovy templates do not have the same configuration hierarchy, hence
  they don't share all settings
* spring.data.elasticsearch.local does not seem to exist
* flyway prefix and suffix should be sqlMigrationPrefix and suffix
* spring.rabbitmq.virtualHost had a typo
* endpoints.error.path is not a valid property
* shell.command-path-patterns had a typo
* spring.datasource.max-wait had a typo

Fixes gh-1226

Previously any custom http code mapping would remove the default mappings. With this commit the behaviour is changed so that default mappings will stay if a custom mapping is registered. Certainly a default mapping can be overridden.

fixes #1264

Fixes gh-1259

Fixes #1247