see #1191

Previously, SpringApplication would set the java.awt.headless system
property even if it had already been set. This commit updates
SpringApplication to honour any existing configuration when setting
the property.

Fixes #1189

The new ResolvedArtifact-based minus implementation was checking the
wrong Set when deciding whether or not a ResolvedArtifact should
be included in the result. This was leading to provided dependencies,
that should have only been packaging in WEB-INF/lib-provided also
being packaged in WEB-INF/lib.

The WarPackaging tests have been updated. In addition to checking that
WEB-INF/lib-provided does not contain anything that’s unexpected, they
also verify the contents of WEB-INF/lib

Fixes #1187

Closes #1183

Closes #1188

Upgraded to Dijkstra SR1 BOM as well as Spring HATEOAS 0.14.0.RELEASE
(required by Dijkstra SR1).

Closes #1197
Fixes #1190

Closes #1193

-q switches off all logging and the banner, -v switches logging to debug,
running with neither will be info.

Fixes gh-1108

E.g.

logging.level.org.springframework: DEBUG
logging.level.org.hibernate: WARN

Fixed gh-788

Fixes gh-1165, fixes gh-1164

See gh-1180

* pull1181:
  Fix typo in documentation

Since all dependencies are local in a jar there is no need for
a GrabResolver (and it breaks the app because the default ivy
GrapeEngine is used instead of the smart, pretty Boot one).

Fixes gh-1179

Fixes gh-1178

This reverts commit 67189477.

No need as picked up from the parent.

If an Endpoint is already @ManagedResource then it doesn't need
an additional (probably wrong) MBEan registration based on the invoke()
method.

The DataSourceInitializer is instantiated early by the
DataSourceInitializerPostProcessor, so it has to live in
isolation (in its own @Configuration) to prevent early
instantiation of the DataSourceAutoConfiguration.

Fixes gh-1166

Trying to fix the Windows CI build

Exception appears to be different on Windows JVMs

Fixes gh-1169

Fix 'fat jar' support for windows to correctly deal with URL and path
slash issues. The root cause of the original problem was caused by JAR
URLs not including a root slash (ie `file:C:/Users` vs `file:/C:/Users`)

Fixes gh-1145