Remove support for old actionpack and ruby versions
Prep for 2.0.0

  * Removed support for actionpack < 4.0
  * Removed support for Ruby < 1.9.3
  * ISO-3166 alpha-2 codes are now always on, stored in uppercase
    (e.g., US)
Remove jruby-18mode from Travis CI config
Remove ree from Travis CI config
Use namespaced countries gem in order to not pollute namespace.
Merge pull request #48 from lomography/master

Use namespaced countries gem in order to not pollute namespace.
version 1.x uses lowercase for country codes
Merge remote-tracking branch 'upstream/master' into two-point-oh
Add upgrading instructions
Remove code supporting Rails < 4
Cleanup rspec syntax a bit
Merge pull request #49 from espen/patch-1

version 1.x uses lowercase for country codes
Rewrite to match current form helpers interface
Added Rails 3 support back
Add Rails <3.2 support back
Add encoding header back to main file :|
Add encoding header to spec file
Merge remote-tracking branch 'upstream/master' into 2.0.0

Conflicts:
	README.md
Bump beta version
Update CHANGELOG.md to reflect latest API