Change from each to each_value;drop assignment in habtm

2. drop assignment of value to sum in test

Digest auth should not 500 when given a basic header.

fix typos in AR. lots of them.

More helpful message when starting server

v2 of pull request based on feedback from @rafaelfranca, @schneems, and @carlosantoniodasilva

* master-sec:
  fix protocol checking in sanitization [CVE-2013-1857]
  JDOM XXE Protection [CVE-2013-1856]
  fix incorrect ^$ usage leading to XSS in sanitize_css [CVE-2013-1855]
  stop calling to_sym when building arel nodes [CVE-2013-1854]

config.ru uses the effective Rack app

`TimeWithZone` raises `NoMethodError` in proper context.

Closes #9772.

`TimeWithZone` delegates everything to the wrapped `Time` object
using `method_missing`. The result is that `NoMethodError` error
will be raised in the context of `Time` which leads to a misleading
debug output.

i18n locale fallback for localized views

Fix repeat of test; remove unused variable by use of each_key

Remove ancient TODOs [ci skip]

Fix some typos found in activemodel

Move tests out from base_test.rb to inheritance_test.rb

SQLite3 3.6.8+ supports nested transactions [ci skip]

refer to the contributing guide on how to create issues.

http://www.sqlite.org/lang_savepoint.html
https://github.com/rails/rails/blob/master/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb#L130-L132

These tests should be in inheritance_test.rb since its testing a
feature which is implemented in inheritance.rb

`rake db:create` does not change permissions of root user.

Closes #8079.

I had to rework some of the tests because the mock allowed any arguments
for `connection.exeucte`. I think this is very dangerous as there could
anything be executed without the tests noticing it.

Please, see rationale in the included CHANGELOG patch.

Fix rake test warnings in actionpack

remove unused parameter passed to assert_query_equal method

Fix regression: allow pass multipart option to form_for

Remove extra lines from Rakefile, which threw warning

refactor test to drop unnecessary hash creation, test directly instead

Refactor Person/Friendship relationships to be more intuitive