Failing vimrc from tmux

vimrc

 set nocompatible               " be iMproved
 filetype off                   " required!

 set rtp+=~/.vim/bundle/vundle/
 call vundle#rc()

 " let Vundle manage Vundle
 " required! 
 Bundle 'gmarik/vundle'

" My Bundles here:
"
" original repos on github
Bundle 'scrooloose/nerdtree'
Bundle 'tpope/vim-rails'
Bundle 'tpope/vim-bundler'
Bundle 'kien/ctrlp.vim'
Bundle 'tpope/vim-fugitive'
Bundle 'Lokaltog/vim-powerline'
Bundle 'kchmck/vim-coffee-script'
Bundle 'godlygeek/tabular'

" Switch syntax highlighting on, when the terminal has colors
" Also switch on highlighting the last used search pattern.
if &t_Co > 2 || has("gui_running")
  syntax on
  colorscheme molokai
  set hlsearch
endif

let g:Powerline_symbols = 'fancy' " Fancy symbols for Powerline

set tabstop=2       " The width of a TAB is set to 4.
                    " Still it is a \t. It is just that
                    " Vim will interpret it to be having
                    " a width of 4.

set shiftwidth=2    " Indents will have a width of 4

set softtabstop=2   " Sets the number of columns for a TAB

set expandtab       " Expand TABs to spaces

set number

set laststatus=2

map <C-j> <C-w>h
map <C-k> <C-w>j
map <C-l> <C-w>k
map <C-ö> <C-w>l

set guifont=Menlo\ for\ Powerline


" Convenient command to see the difference between the current buffer and the
" file it was loaded from, thus the changes you made.
" Only define it when not defined already.
if !exists(":DiffOrig")
  command DiffOrig vert new | set bt=nofile | r # | 0d_ | diffthis
  	  \ | wincmd p | diffthis
endif

noremap ö l
noremap l k
noremap k j
noremap j h

map § :NERDTreeToggle<CR>

filetype plugin indent on     " required!
"
" Brief help
" :BundleList          - list configured bundles
" :BundleInstall(!)    - install(update) bundles
" :BundleSearch(!) foo - search(or refresh cache first) for foo
" :BundleClean(!)      - confirm(or auto-approve) removal of unused bundles
"
" see :h vundle for more details or wiki for FAQ
" NOTE: comments after Bundle command are not allowed..