update dropwizard-example README.md to current version

silly little text files don't keep up with the project
change 0.3.0 to 0.7.0
Add ObjectMapperFactory#configure

Provides a means to configure existing `ObjectMapper` instances using
the Dropwizard `ObjectMapperFactory`.

Breaks out the code to configure instances from
`ObjectMapperFactory#build()` in to `ObjectMapperFactory#configure()`.
Extended hibernate configuration.

Allows HibernateBundle to configure the SessionFactory in ways that are
not possible using standard properties.

Specifically NamingStrategy and any other configuration outside of
org.hibernate.cfg.Environment.
Merge pull request #290 from nicktelford/feature/configure-objectmapper

Add ObjectMapperFactory#configure
Merge pull request #291 from vadims/hibernate-configure

Extended hibernate configuration.
Merge pull request #289 from littleidea/example_readme_version

update dropwizard-example README.md to current version
Created ConfigurationSourceProvider interface that is responsible for retrieving the InputStream for the configuration.
Replace the deprecated build(File) method with the build(String, InputStream)
Close the inputStream to be safe
Fix formatting for request logs.
Merge pull request #294 from mveitas/configuration-provider

Create ConfigurationSourceProvider interface to allow customization of the source of the configuration
Get picky with ConfigurationSourceProvider and friends.
Fix href to manual in javadoc (Dropwizard Client)
Close Liquibase database connection on shutdown.
Merge pull request #295 from kashyapp/master

Fix href to manual in javadoc (Dropwizard Client)
Call close() in ManagedJdbcConnection instead.
Upgrade Maven plugins.
Extract out the servlet environment.
Move to building a servlet context handler.
Fully extract the servlet environment.