* annotate --routes modifies only routes.rb

This change is a proposed solution to #357 and an alternative to the already proposed solution #361.
In #361 it is needed to call `annotate --routes --ignore-models` to achieve the same as in this change with only `annotate --routes`.

* Call eager_load only when models are included

This to prevent activerecord model errors when using mongoid for example and calling `annotate --routes`

* --active-admin replaced as a flag.
closes #363.

* Implemented routes in markdown, closes #178

* Fixed some offenses
* Added test.

* Correct 'comas' to 'commas' in README

* Provide :hide_default_column_types option to make hiding of default configurable

* Use `NO_DEFAULT_COL_TYPES` as default when the `hide_default_column_types` option is not provided

Reduced the Cyclomatic complexity.
#330 By default didn't annotate activeadmin models.
This close #330

Add option for classified annotation (id first, timestamps/assotiactions last)

require activesupport core extension .blank?

Add option for classified annotation (id first, timestamps/assotiactions last)

Fix bug

Restore gemspec file

* update option parser
* didn't add tests b/c i'm not using rvm and can't see an easy way to add commandline option parsing tests

Add configurable for routes position, ability to remove routes, fix handling of output from newer Rake versions.

This reverts commit 8d3c00c7.

Sorry, but database order should be the default unless a user really wants it alphabetized. (We should also allow a .annotate file so users can set their own preferred options more easily.)

Conflicts:

	.gitignore
	bin/annotate
	lib/annotate/annotate_models.rb
	lib/tasks/annotate_models.rake