Re-enable match parent.

Looks like this feature is used by LatexBox or Latex itself as I get a lot of
error messages if I disable this feature and open a latex document.
Filter .tag files from ack-grep
Move apparience related config to the top of vimrc
Show cursorline at all times.

Instead of showing the cursorline only in insert mode, show it at all times.
This is to mitigate the horrible matchparent functionality of vim that focuses
my attention to the wrong place.

Disabling matchparent is not an option since it totally breaks the latexBox
plugin that I use regurarly.
Replace sudo.vim with SudoEdit.vim plugin
Improve wildignore filter