Change more Array.wrap calls

Putting AS::Multibyte on a Ruby 1.9 diet

remove use of Multibyte.clean as it's no-op in ruby 1.9

remove obsolete commented asserts in TextHelper tests

remove useless call to mb_chars

Moved the logger methods in activeresource/test/abstract_unit.rb

This is neither a public API, nor used internally, so let's remove it.

Array.wrap is no longer needed at ActionMailer

minor

Conflicts:
	activesupport/lib/active_support/multibyte/chars.rb

Refactor tests

refactor String#truncate not to use mb_chars

PostgreSQL: Allow consistent setting of libpq params in database connection specification

Time advance nsec bug