Color Toy plugin function added.

* new file color_toy_options.vim.
    * Implemented 2 functions for loading and saving color options to a
      config file in disk.
* new file colors_win.vim.
    * Added functions to create and setting options for window to list
      color toy options detail.
Disabled 'jedi-vim' on *nix platform.
Removed unportable symbol setting for 'airline'.
Enabled 'airline-tabline' feature.

* Unified 'guioption' settings for all platforms.
    all using non gui tablings now.