Undo quick hacks from previous commit and add test explicitly testing keyspace resolution.

Original pull request: #19.

Updated license header.

Original pull request: #19.

We now allow using Spring's meta-annotation programming model. Own meta-annotations can be composed using @keyspace and @AliasFor annotation.
Example for a custom meta-annotation corresponding with @keyspace("sessions"):

@Persistent
@retention(RetentionPolicy.RUNTIME)
@target({ ElementType.TYPE })
@keyspace
public @interface SessionsKeyspace {

	@AliasFor(annotation = KeySpace.class, attribute = "value")
	String name() default "sessions";
}

Original pull request: #19.

Updated license header.

Original pull request: #19.

We now allow using Spring's meta-annotation programming model. Own meta-annotations can be composed using @keyspace and @AliasFor annotation.
Example for a custom meta-annotation corresponding to @keyspace("sessions") when it's used with @SessionsKeyspace class MyEntity {…}:

@Persistent
@retention(RetentionPolicy.RUNTIME)
@target({ ElementType.TYPE })
@keyspace
public @interface SessionsKeyspace {

	@AliasFor(annotation = KeySpace.class, attribute = "value")
	String name() default "sessions";
}

Original pull request: #19.

Updated license header.

Original pull request: #19.