Undo history and syntax errors can now be toggled with F9 and ctrl-F9.
Nerdtree was dropped in favour of the much better vimfiler. The status
bar was reconfigured to display more information including the current
number of errors. A script was added that can generate a tags file from
/usr/include for more robust syntax checking in C. The update script was
updated to hopefully handle the removal of nerdtree when it updates the
submodules... Syntax highlighting has been improved in numerous
directions including more definitions as well as tweaked colours.
Keybindings were tweaked again and new ones added for the new features.
The paste function was incorrectly using buffer 0 instead of the current
buffer when in visual mode, but this is no longer the case.
Autocompletion has been improved quite a bit and the keybindings
tweaked. A bunch of general fixes and tidying up was done.