Batkins questions

Batkins answers

• why do I see the source code (html) of some web pages?
• can't find gem rails - Gem::GemNotFoundException
• Clean out, or reset test-database with Rspec and MongoID on Rails 3
• Sinatra + Rack::Test + Rspec2 - Using Sessions?
• converting plain text to html
• Creating controllers and views for a has_many :through relationship in Rails 3
• Undefined method password_changed? Error
• Using form_for multi-select fields with acts_as_taggable_on
• php Unique filename when uploading