[vim] solarized.vim menu updates

[vim] add highlighting for gitcommit values (useful in fugitive)

[vim] reorganized gui menu, added help links for submenus

[vim] fixed regression where bold was not active in gui

[vim] new, experimental trailing space function and menu item

[vim] modified normal/high visibility highlighting for listchars

[vim] Override colors for diff filetype

[vim] conditional low-color bold formatting moved to separate var

[vim] solarized.vim fix for bold colorshift in low color terminals

[vim] add missing solarized_menu option

[vim] solarized.vim add new diff modes to options and menu

[vim] solarized.vim 8 color highlighting match to 16/gui modes

[vim] solarized.vim fixes for 8 color terminals like Apple Terminal.app

[vim] solarized - added SolarizedOptions command

[vim] solarized updated with menus and autogenerated options