Fixes gh-1534

There was too much state really in the old implementation of
AuthenticationManagerConfiguration, and it was leading occasionally
to null pointers when method A assumed that method B had already
been called and it hadn't. This change manages to concentrate all the
references to an AuthenticationManagerBuilder into a single method
call, removoing the need for storing it at all.

Fixes gh-1556

The applicationDefaultJvmArgs property was added in Gradle 1.7. This
commit updates RunPluginFeatures to access the property defensively
so that the plugin can be used with Gradle 1.6.

Fixes gh-1511

Closes gh-1503
Closes gh-1505

Closes gh-1524

Closes gh-1510

Closes gh-1500

The loading is via a marker interface SpringBootAstTransformation
to avoid clashing with other services registered as org.groovy.*

Fixes gh-1392

Fixes gh-1488

Change SpringApplicationContextLoader to set active profiles using the
`spring.profiles.active` environment property rather than calling
`SpringApplication.setAdditionalProfiles`. This allows @ActiveProfiles
to replace existing profiles rather than add to them which is consistent
with the Spring TestContext Framework.

Fixes gh-1469

Allow customization of the Apache HTTP Client used in TestRestTemplate
via an options enum.

Fixes gh-1497

Update LevelRemappingAppender to that any calls that aren't remapped
are still logged.

Fixes gh-1481

Prior to this commit, the repackage goal silently ignored the case of
two libraries having the same name and version but a different group.
As a result, the second library was overwriting the first one in the
repackaged jar.

This commit adds support for custom Library names and updates the
Maven and Gradle plugins so that the name includes the group ID
when there would otherwise be a duplicate.

Fixes gh-1475

Fixes gh-1470

This commit clarifies the role of the 'addResources' flag and makes
it explicit that any duplicate found in the target directory are
actually removed

Fixes gh-1479

This commit is a workaround until git-commit-id-plugin 2.1.11 is
released. See also issue 124 of that project

Fixes gh-1484

Add additional constructor and a protected postProcessConverters method
to make it easier to manipulate the final converter list that will
be used.

Fixes gh-1482

Convert any session timeout values from seconds to minutes when
configuring Tomcat.

Fixes gh-1422

Fixes gh-1463

Extract the hairy logic from getServletContextInitializerBeans() to a
new class and refactor things a little.

Tomcat in particular sets an environment variable in it's shell scripts
that people commonly use to start the container. So if people deploy a war
file to a stock Tomcat server they can't override the logging config, even
with the default location. With this change at least that should work
(for logback and log4j anyway). Tested with logback.

See gh-1432

Users could be surpised if they register a Filter with an @Order and it
isn't apparently respected. This change accumulates all Filters and
FilterRegistrations (for instance) before sorting them.

Fixes gh-1455

Closes #1419

See changes made in revision 1602507 [1]

[1] https://svn.apache.org/viewvc?view=revision&revision=1602507

Fixes #1446

Fixes #1429

Velocity and Freemarker share some common properties so the base class for
configuring their properties makes some sense. Unfortunately the implementation
pulls in Spring MVC at runtime because of the signature of one method (that
would never be called). We can fix that in a number of ways, but the least
disruptive is probably to change the signature of that method and only refer
to the concrete template view resolver type if the method is called.

Fixes gh-1437

Add the servlet and context path along with the exception message to
the error logged in ErrorPageFilter.

See gh-1427