added '-R' option to require additional files
ignore unknown macros ('acts_as_whatever') (with specs!)

use model_dir parameter in remove_annotation as well; remove obsolete (and confusing) annotate.rake file

fix the dependencies so it doesn't fail when multiple version of Rails is installed, reported by kuroda

Signed-off-by: ctran <ctran@pragmaquest.com>

added an option postion to choose to put the annotation, spec/fixtures now also get annotated, added a task to remove the annotations