Improve file access check with better confidence levels

also support for --report-direct option

to avoid losing information

which should give some speed improvements

Run tests before pushing...still learning that lesson, I guess.

in SQL injection, format validation, mass assignment,
and CVE-2010-3933 checks.

Should fix #107

to get a hash of just models which inherit from ActiveRecord::Base.

Inconsistent warning type

Conflicts:
	test/tests/test_rails3.rb
	test/tests/test_rails_with_xss_plugin.rb

Conflicts:
	test/tests/test_rails3.rb

make the check methods line up with the specific CVE numbers

I think we can remove a file marked as "unused" since 2010.

to avoid some false positives when redirecting to a model instance.
Should fix #96

whitelist, not blacklist!

This fixes an issue where things like local variables
were being interpreted as method names.

Example:

before_filter :blah, filter_options

"filter_options" was being treated as if it were a method name,
which was wrong.