feat(kernel): expose KabamKernel object itself
feat(kernel): compose the app
Merge pull request #66 from chopachom/master

exposing KabamKernel constructor and composing kernel
chore(tests): user createKabam helper everywhere
chore(kernel.test): grammar fix
feat(core): encrypt/decrypt plugin

encrypt and decrypt functions that use AES-256-CBC and config.SECRET as
secret key
feat(User): safeJSON to safely export user to JSON
merge fix
check working of Groups restful API; add members to Groups