Upgrade path to Rails 4

The path to get FatFreeCRM Rails 4 ready is a long one. Here are some of the tasks that need to be accomplished to get there.

• Jump to ruby 1.9.3 only (deprecate ruby 1.8 support)
• Convert rjs templates to .js.erb (use jQuery only.)
• Remove rjs plugin
• Replace references to update_attribute(s) with update_column(s)
• ... and plenty more still undocumented...

Optional (required for Rails 4.1)

• Convert find_by_name_etc to Model.where(:name => value) syntax