Remove exclusionary gendered constants GENDERS

To improve the guide, replace the constants example with something
that doesn't exclude a class of people.
Updated minimagick URL
Merge pull request #125 from JRice/master

Updated minimagick URL
Merge pull request #123 from cabrera/improve_example

Replace exclusionary constants example GENDERS
Moved the english version into the appropriate file.
Merge branch 'master' of github.com:bbatsov/rails-style-guide
Added a Russian main readme file.
Added links to the Ruby Style Guide.
Intro translated.
Flawed gems translated.
Continue translating initialization.
Finished translating the config section.
Translated the section about controllers.
Merge pull request #1 from arbox/master

added russian translation