Adding Basic file for ActiveModel. @vatrai and @sukeerthiadiga is going to take care other detailed stuff.

ActionView::Helpers::TextHelper#simple_format should not change the text in place. Now it duplicates it.

add four new tests to verify that the other three methods that called stringify_keys! are fixed. verified that the tests break in master without the code patch. Closes #2355

Quote these dates to prevent intermittent test failure. Suppose local time is 00:50 GMT+1. Without the quoting, the YAML parser would parse this as 00:50 UTC, into the local time of 01:50 GMT+1. Then, it would get written into the database in local time as 01:50. When it came back out the UTC date from the database and the UTC date of two weeks ago would be compared. The former would be 23:50, and the latter would be 00:50, so the two dates would differ, causing the assertion to fail. Quoting it prevents the YAML parser from getting involved.

Don't require assets group in production by default, you can change this default in the application.rb anyways

Rails 3.1 throws a Errno::ENOTDIR if files are put in assets directories

In order to use StrictSanitizer in test mode
Consider :id as not sensetive attribute that can be filtered from
mass assignement without exception.

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

This speeds up remove_possible_method substantially since it doesn't
have to rescue a NameError in the common case.

Closes #2346.