Remove deprecated set_belongs_to_attr_name
Commit some SQL specs
Hooks can now be dynamically and multiply defined. Using symbols for definitions.
Work around apparent RubyMotion issue with redefine classes in spec.

If this class is named Task, the spec fails as the hook methods are not being called. Unclear as to why, but it is doubtful this would be an issue in a real app.
Fix Column#classify for :has_one
Add Model#_destroy accessor, to mark instances for later destruction
Merge branch 'optimizations' into sql_dev
Handle associate destruction
Actually checking to see if the :id field already exists.
Using existing column? method
column? wasn't working but columns.include? does work
SQLScope should not clone the @loaded attribute.

After all, it's not cloning the @colletion. Nor should it...
Merge pull request #35 from wink/master

Checks for presence of :id column before adding it again.
Bumped version
Correct punctuation
Merge branch 'optimizations' of https://github.com/aceofspades/MotionModel into aceofspades-optimizations

Conflicts:
	lib/motion_model/model/model.rb
Bumped version
Merge remote-tracking branch 'upstream/master'
Remove redundant calls to #column
Merge branch 'master' into sql_dev