By convention, Ruby code is indented using two spaces (  ) per-level.
The code used tabs (\t) previously and therefore wasn't idiomatic.
This change updates the indenting to use two spaces.

This change adds support for --HEAD builds to the Homebrew formula. It
defines a conditional dependency on Maven and builds the -cli project
during install.  The location to install from is abstracted out so
that code is identical regardless of whether the build is --HEAD or
mainline.

Fixes gh-275

If the context hierarchy is from a SpringApplication we can control
the shutdown semantics a bit. Specifically we need a listener in the child context
that will shut it down when the parent closes (since assummably the child relies
on beans in the arent that may now be disposed).

Fixes gh-275

Fixed the nested jar URLHandler to correctly deal with files on
Windows.

Fixes gh-269

Remove what appears to be unused CLI code.

Remove the custom JodaModule support which is not necessary with
Spring 4.0.1.

Fixes gh-186

Upgrade to the latest 4.0.x SNAPSHOT of the Spring Framework in
preparation for the 4.0.1 release.

Add a LevelRemappingAppender that can remap the level of logback events
as they are written.

Also update the base configuration to change the somewhat noisy
Thymeleaf INFO logging to DEBUG.

Fixes gh-265

Change TomcatEmbeddedServletContainerFactory to allow per context
skip patterns to be defined, rather than using a global system property.

This commit also renames `skipPatterns` to `tldSkip` to align it with
Tomcat context.xml configuration.

Updates gh-256

...without any deprecation warnings and with some chance that it will
still work with Hibernate 5.

Fixes gh-256

I'd prefer a fix that wasn't global for the VM, but the default values shoudl be harmless
at least.

Fixes gh-274

Addresses gh-263 to some extent.

Also new section of README for propery keys used by the
launcher.

Update JarFile to allow the custom registration of a JAR
`URLStreamHandler` that allows `jar:` URLs to be constructed from
Strings. This removes the previous requirement that all nested JAR URLs
be created with a 'context'.

To supported nested JARs the `java.protocol.handler.pkgs` system
property is changed so that our custom URLHandler is picked for 'jar'
protocols in preference to the Java default.

Fixes gh-269

I guess this didn't get done before because of the legacy structure of the
class hierarchy of TestContextLoaders. It makes sense that we should just prefer
netsted @Configuration though, so that's what this change does.

Fixes gh-271

Update `GroovyCompiler` and `AetherGrapeEngineFactory` to use the
recently added `spring-boot-dependency-tools` in favor of loading
dependency information from a generated properties file.

Add a gradle `ResolutionStrategy` that resolves missing version numbers
using the `spring-boot-dependencies` POM.

This commit also introduces a new `spring-boot-dependency-tools` module
that provides programmatic access to the `dependencyManagement` section
of the dependencies POM.

Fixed gh-262

--verbose seems to be only for CLI logging (so really only
for dependency resolution). --debug is interpreted by SpringApplication
but up to now has been extracted and deleted from the command line
by the CommandRunner. This change makes --debug set a System property
*and* pass it down to the application (if used with -- separator).

Fixes gh-266

Fixes gh-264

Fixes gh-260

spring.config.[name,location] can both be a comma-separated list now. Highest
priority is last, like a hash overriding its keys (as per other conventions
in the listener).

Fixes gh-261

If any @Import (or @Enable*, especially @EnableScheduling) has registered
bean *names* as ApplicationListeners, and the application context wasn't
refreshed fully when it failed, then the listener lookup could fail and
mask the original exception

Fixes gh-253

* Ensure prefix ends with period
* Allow prefix and key index to be set separately

Fixes gh-250

Declared spring-aspects as additional dependency in Spring Data JPA
starter pom. This is necessary to let the auditing feature work
correctly.