Adds BFPO support & tidies up regex list.#1

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robotmay wants to merge 5 commits intodavidjrice:masterfrom

robotmay:patch-1

Commits on Nov 1, 2011

Adds BFPO support & tidies up regex list.
Robert May
committed
Tests for BFPO
Robert May
committed
Switched to hash
Robert May
committed
Update lib/validates_as_uk_postcode.rb
Robert May
committed
Update test/rails3/validates_as_uk_postcode_test.rb
Robert May
committed