Removed ProviderAccountResultHelper and avoid ProviderAccountResult to be cached
DefaultProviderAccountResult#getHref() throws UnsupportedOperationException now
Merge branch 'dev' of https://github.com/stormpath/stormpath-sdk-java into remove_ProviderAccountResultHelper

Conflicts:
	README.md
	impl/src/main/java/com/stormpath/sdk/impl/ds/DefaultDataStore.java
	impl/src/test/groovy/com/stormpath/sdk/impl/application/DefaultApplicationTest.groovy
Fixed issue where ProviderAccountResult newAccount attribute was not being set
Merge pull request #91 from stormpath/remove_ProviderAccountResultHelper

Removed ProviderAccountResultHelper