Added vim-tmux-navigator.
Still trying to wean myself off LRUD arrow keys.
Removed unused tab mappings.
Have .vimrc open in new tab.
Have tagbar just show interfaces, classes and functions.
Set splitbelow and splitright for more natural split behaviour.
Remove search highlighting on ENTER.
Added a function and mapping to launch my todo.
Added funtion and mapping to print_r() selected text on line above.