Sublime 2 Settings - Menu "Preferences" -> "Settings - User"

Default.sublime-keymap

[
  {
    "keys": ["alt+w"],
    "command": "toggle_setting",
    "args":
    {
        "setting": "word_wrap"
    }
  }
]

Preferences.sublime-settings

{
  // Sublime Text 2, Menu "Preferences" -> "Settings - User"
  // https://gist.github.com/miebach/5891872
  // http://docs.sublimetext.info/en/latest/reference/settings.html
 
  // (1) TEXT AND COLORS
  "font_face": "Lucida Console",
  "font_size": 11,
  "color_scheme": "Packages/Color Scheme - Default/Sunburst.tmTheme", // dark
  //"color_scheme": "Packages/Color Scheme - Default/Mac Classic.tmTheme",  // light
  "highlight_line": true, //highlight the current line
  "caret_style": "wide",  // available options “smooth”, “phase”, “blink”, “wide”, “solid”


  // (2) ### TABS ###

  "tab_size": 2,  // The number of spaces a tab is considered equal to
  "translate_tabs_to_spaces": true,
  // If translate_tabs_to_spaces is true, use_tab_stops will make tab and
  // backspace insert/delete up to the next tabstop:
  "use_tab_stops": true,

  // (3) ### OTHER BEHAVIOUR AND LAYOUT ###

  "word_wrap": false,
  "scroll_speed": 0,
  "line_padding_top": 5, //space above line
  "line_numbers": true,

  //end of file, keep this:
  "JSON dummy entry": 0
}