Fix some options in aliases.
Fix some options in aliases.

* grep was case-sensitive by default, so I changed that.
* xrdbo was "xrdb ~/.Xresources", I added -merge as a flag, which IIRC is more
  proper.

pharpend/dotfiles,pharpend/dotfiles,pharpend/dotfiles,pharpend/dotfiles,pharpend/dotfiles,pharpend/dotfiles