Upgrading to the latest version of gems

I left `country_select` with the version as it was
using, due to errors I saw around pulling the country
names in the `Person` class. `CountrySelect::countries`
is not defined.

`jquery-ui-rails` have changed how it needs to be 
included in application.js and application.css. I 
fixed those.
Fixing all RSpec deprecation warnings

I turned on `raise_errors_for_deprecations!` in 
`spec\spec_helper.rb`, that helped me track down
all deprecation warnings. I fixed all of them, 
left this setting in the spec_helper file to enforce
the new RSpec syntax going forward.
Added time zone support to events.

I noticed a bug when looking at my list of proposals for RubyConf Australia.

On the initial list it showed the CFP as open, however it was actually closed once
I clicked through to the show action.

I believe that this would fix the issue, though haven't tested it.
Switch gender, ethnicity to free text fields.

Firstly: should have been on the ball with this to begin with. Many thanks to @megahbite to pointing this out, and @cczona for the wisdom of her RubyConf AU presentation (though given that was 2013, you'd think we would have been better at this to begin with).

Conflicts:
	app/models/person.rb
Merge pull request #12 from adomokos/fix-all-rspec-deprecation-warnings

Fixing all RSpec deprecation warnings
Merge pull request #13 from adomokos/upgrading-to-the-latest-version-of-gems

Upgrading to the latest version of gems
Merge pull request #14 from parndt/patch-1

Added time zone support to events
Merge pull request #15 from rubyaustralia/demographics

Switch gender, ethnicity to free text fields.
Silencing FactoryGirl's tranient warning
Merge pull request #16 from adomokos/silencing-factory-girl-transient-warning

Silencing FactoryGirl's tranient warning