AuthenticationScheme is uppercase now: AuthenticationScheme.BASIC
Documented isMemberOfGroup
Improved isMemberOfGroup text based on review's feedback
Added section about specifying AccountStore during authentication
Client / ClientBuilder / Clients refactoring
Merge branch 'source' of github.com:stormpath/stormpath.github.io into Client_ClientBuilder_Clients_refactoring

Conflicts:
	source/java/product-guide/index.markdown
Added documentation for ApiKeyBuilder interface
Updated documentation for reflect changes from review
Merge branch 'source' of github.com:stormpath/stormpath.github.io into add_ApiKeyBuilder_interface
Improved based on changes applied in 1st round of review
Merge commit 'refs/pull/24/head' of https://github.com/stormpath/stormpath.github.io into source
Merge commit 'refs/pull/26/head' of https://github.com/stormpath/stormpath.github.io into source
Merge commit 'refs/pull/32/head' of https://github.com/stormpath/stormpath.github.io into source
Merge commit 'refs/pull/34/head' of https://github.com/stormpath/stormpath.github.io into source

Conflicts:
	source/java/product-guide/index.markdown
Merge commit 'refs/pull/35/head' of https://github.com/stormpath/stormpath.github.io into source

Conflicts:
	source/java/product-guide/index.markdown