test: fix compilation warnings in TestModelBase

Signed-off-by: Pierre-Alexandre Meyer <pierre@mouraf.org>
subscription: trivial fixes in subscription objects

Removed wildcard imports and re-indented the code.

Signed-off-by: Pierre-Alexandre Meyer <pierre@mouraf.org>
CREDITS: add entry for Didier Bathily

Merci!

Signed-off-by: Pierre-Alexandre Meyer <pierre@mouraf.org>
Reading Adjustments from Invoice

From the Invoice Structure Adjustments are now also read. Adjusted the
Unit Tests to pass "integration"

Conflicts:

	src/test/java/com/ning/billing/recurly/TestRecurlyClient.java

Signed-off-by: Pierre-Alexandre Meyer <pierre@mouraf.org>
test: fix code style issues

Signed-off-by: Pierre-Alexandre Meyer <pierre@mouraf.org>
Support to cancel and reactive subscriptions

Conflicts:

	src/test/java/com/ning/billing/recurly/TestRecurlyClient.java

Signed-off-by: Pierre-Alexandre Meyer <pierre@mouraf.org>
CREDITS: add Ronnie Rap

Thanks!

Signed-off-by: Pierre-Alexandre Meyer <pierre@mouraf.org>
[maven-release-plugin] prepare release recurly-java-library-0.1.4
[maven-release-plugin] prepare for next development iteration
"nil hack" was not complete.

According to http://docs.recurly.com/api/push-notifications we can meet element with attribute nil="true" and nil attribute can be combined with other (eg nil="true" type="datetime")
Fix boolean hack
Recurly push notification body serialization
Merge branch 'master' of git://github.com/killbilling/recurly-java-library

Conflicts:
	src/main/java/com/ning/billing/recurly/RecurlyClient.java
	src/main/java/com/ning/billing/recurly/model/Subscription.java
	src/main/java/com/ning/billing/recurly/model/SubscriptionUpdate.java
	src/test/java/com/ning/billing/recurly/model/TestModelBase.java