Make auto-complete be more keen to display help tooltips.
Remove the local variable business from init-el-auto-complete.

It seems it's not necessary anymore.
Use #'ignore instead of defining an empty lambda.
Decrease the echo-keystrokes delay.
Move stuff that doesn't *need* to run before package installation to after package installation.
Move font setup earlier, to reduce flickering when starting Emacs.
Disable VC.
Add ipretty.