AndroidLoader: if onViewCreated is taken, then
the next best thing is onActivityCreated.

Right now, @OnCreate is still invoked
after I determine if the methods above exist.

So, false negative, the method is created.
Then @OnCreate kicks in.
Removed compulsory vestigial `onViewCreated`,
now it will be created if and only if required
by the @OnCreate annotation.

In case the `onViewCreated` is already in use,
move @OnCreate target to `onActivityCreated`,
In case the `onActivityCreated` is already in use,
move ... to `onStart`.
Improved support for support.v4 Loaders

Mitigated collision course with `@OnCreate`.

Fixed bad check if LoaderCallback is implemented.

Added examples.
Merge pull request #50 from Buggaboo/v0.10_development_loader_fix

V0.10 development loader fix