Adding more verbose logging to specs

This could be very helpful for Travis builds
And I need to test if the RDF gem is the culprit of a modify frozen
string error. Or the ActiveFedora gem. Or if it is isolated to Curate.
Merge pull request #260 from projecthydra/adding-verbose-logging-to-active-fedora

Adding more verbose logging to specs
Don't try to track changes on delegates that are not attributes
Added has_attributes to replace delegate_to

We don't want to conflate attributes stored in the repository with delegating
to methods. There are certain actions like change tracking or casting to
a singular value (multiple: false) that we only want to do on persisted
attributes.  The previous implementation could break in certain cases when
developers attempted to use ActiveSupport's delegate method.

Conflicts:
	lib/active_fedora/attributes.rb
	lib/active_fedora/delegating.rb
Remove loading of rake tasks because they are already loaded in the railtie
Removed an incorrect useage of has_attributes. This applied only to delegate
Merge pull request #261 from projecthydra/remove_delegate_usage

Removed an incorrect usage of has_attributes. This applied only to delegate
Removed spec that was duplicate of spec/integration/attributes_spec.rb
Removed spec that was a duplicate of spec/unit/base_delegate_spec.rb
Rename base_delegate_spec to attributes_spec
Merge pull request #264 from projecthydra/merge_specs2

Removed spec that was a duplicate of spec/unit/base_delegate_spec.rb
Merge pull request #263 from projecthydra/rename_spec

Rename base_delegate_spec to attributes_spec
has_attributes should raise an exception if the datastream property
isn't specified.

Fixes #265
Remove all textile and RedCloth dependencies
Merge pull request #267 from projecthydra/warn_missing_datastream

has_attributes should raise an exception if the datastream property
Merge pull request #262 from projecthydra/merge_specs

Removed spec that was duplicate of spec/integration/attributes_spec.rb
Merge pull request #269 from projecthydra/cleanup_cruft

Remove all textile and RedCloth dependencies