Fix build on Ruby18. We should specify endian for UTF16/32.
define Object#blank? only if not defined yet
Only wrap attachment filenames in double quotes not other params
specs: update address field initialization tests to pass in headers correctly
Clarify parser behavior for funky angle bracket addresses
Mail::Field: lookup class for fieldname instead of iterating over each hash entry
Mail::Field#split: move splitting regexp to Mail::Patterns
Mail::Field use a lookup table for field ordering and memoize field order
Mail::Utilities#match_to_s use casecmp instead of creating downcased strings
Fixing doc typo in encodings.rb

This patch removes an errant period character.
Fix markup in Encodings section
Merge pull request #489 from JackDanger/patch-1

Fixing doc typo in encodings.rb
Merge pull request #495 from francois/patch-1

Fix markup in Encodings section
Merge pull request #475 from amatsuda/object_blank_redefine_warning

define Object#blank? only if not defined yet
Merge pull request #471 from kennyj/fix_build_on_ruby18

Fix build on Ruby18. We should specify endian for UTF16/32.
Refactored SSL context code in Mail::SMTP; allow :ca_path or :ca_file to be passed in as settings.
Remove references to Treetop parse tree in specs
Extract comments from an address when it is part of a group
Update CHANGELOG for #471, #475, #489, #495
Merge pull request #399 from ndbroadbent/configure_ca_path_or_file

Allow :ca_path or :ca_file to be passed in as settings, for SSL context