Fix deprecation warnings on active record scopes

In addition to checking for []/[]= and set/get, also check
for functions like read/write.

Yahoo auth errors: add raw message to warnings

fix regexp match in yahoo lookup to use xml boundary instead of newlines. fixes broken lookup unit test

Added neighborhood method to Geocoder::Result::Google class

Convert :units option value to symbol

Uses secure RubyGems URL

Fixes version check for Ruby 2.0.0

require 'date' so Date#today is available for gemspec.date

Improve regular expressions for queries.

Ideally, datenimperator-add-ovi would have been rebased to master before
being merged.

Conflicts:
	test/test_helper.rb

Use \A and \z in regular expressions to avoid newline issues. Also, do not consider any address that begins with 127 to be a loopback IP.