Reduced the scrolloff rows/cols from 3 to 1, and added a setting to
make holding <ctrl> while using the scrollwheel on a mouse change from
scrolling up/down to scrolling left/right
changed the clipboard to 'unnamedplus' which cuts/copies to the xorg clipboard and the desktop one, and pastes from the desktop. I also tweaked the theme to include more variety, make things more readable and apply more logic as to what has what colour/style. F2-F4 are now the line number and highlight toggles, ` and ~ are now toggles for nerdtree/ctags, visual highlighted text is now replaced with p rather than needing to use P, ctrl-t,n,p open new tabs and cycle to the next and previous one respectively, and each ctrl/shift-up/down/left/right combo now has a h,j,k,l equivalent with more complete movement. The autocomplete list no longer has a limit, and folded code is now collapsed at a lower depth.