Emacs configuration to work with Ruby and RubyOnRails

.emacs

;; Theme
(load-file "~/.emacs.d/color-theme-butcher.el")
(color-theme-butcher)

(set-frame-font "-misc-fixed-medium-r-normal--15-*-75-75-c-90-koi8-r")
(tool-bar-mode)
(menu-bar-mode)
(scroll-bar-mode)

;; Rinari
(add-to-list 'load-path "~/.emacs.d/rinari/")
(require 'rinari)
(add-hook 'ruby-mode-hook
          (lambda ()
            (defadvice ruby-mode-set-encoding
              (around ruby-mode-set-encoding-disable activate) nil)))

;; Ruby-electric
(require 'ruby-electric)
(add-hook 'ruby-mode-hook 'ruby-electric-mode)

;; MuMaMo-Mode for rhtml files
(add-to-list 'load-path "~/.emacs.d/nxhtml/util/")
(require 'mumamo-fun)
(setq mumamo-chunk-coloring 5)
(add-to-list 'auto-mode-alist '("\\.rhtml\\'" . eruby-html-mumamo))
(add-to-list 'auto-mode-alist '("\\.html\\.erb\\'" . eruby-html-mumamo))
(add-to-list 'auto-mode-alist '("\\.js\\.erb\\'" . eruby-javascript-mumamo))
(add-to-list 'auto-mode-alist '("\\.js\\.rjs\\'" . eruby-javascript-mumamo))

;; Interactively Do Things
(require 'ido)
(ido-mode t)

;; git-emacs
(add-to-list 'load-path "~/.emacs.d/git-emacs/")
(require 'git-emacs)
(require 'git-status)
(setq git-state-modeline-decoration 'git-state-decoration-large-dot)
(global-set-key (kbd "C-x M-g") 'git-status)

;; Autocomplete
(add-to-list 'load-path "/home/butcher/.emacs.d/")
(require 'auto-complete-config)
(add-to-list 'ac-dictionary-directories "/home/butcher/.emacs.d//ac-dict")
(ac-config-default)

;; Rsense
(setq rsense-home "/opt/rsense-0.3")
(add-to-list 'load-path (concat rsense-home "/etc"))
(require 'rsense)

;; Rsense + Autocomplete
(add-hook 'ruby-mode-hook
          (lambda ()
            (add-to-list 'ac-sources 'ac-source-rsense-method)
            (add-to-list 'ac-sources 'ac-source-rsense-constant)))