Only use Globalize.locale for slug_locale when that translation has a viable slug.

Fixes #1461
I wrote a plugin to handle decorator loading.
Allow Rails >= 3.1.10 and block any Rails version 3.2.0 -> 3.2.10

Pursuant to https://groups.google.com/forum/#!topic/rubyonrails-security/61bkgvnSGTQ/discussion

Conflicts:
	core/refinerycms-core.gemspec
Merge pull request #2119 from refinery/decorators

I wrote a plugin to handle decorator loading.
Fixed line ending in guide.
Update doc/guides/3 - Advanced Techniques and Tips/3 - Using Custom View or Layout Templates.textile

Bypass find_page filter when use custom view template
Merge pull request #2126 from kasperite/patch-2

Update doc/guides/3 - Advanced Techniques and Tips/3 - Using Custom View Template
Updated friendly_id to support Rails 3.2.10+.