0.3.0: workarounds

1. remove sleep calls: problem on certain computers is with:
   'special device /dev/mapper/luksroot not found'
   no idea what the cause or solution to this is
2. install cower then pacaur, then zramswap, one at a time
3. pkgs: vim-jinja -> vim-jinja-git, altered some other pkgs
4. logic for `rm -rf /tmp/pacaur*`