Switch to $HOME/bin for primary local bin path

Due to the way that the `dots` command works now, setting this local
'bin' directory works better than having the path point to the 'bin'
directory in the dotfiles directory. This approach also makes it easier
to put the dotfiles directory in a new location.
Map ':noh' (search highlighting) to '<C-esc>' in order to avoid conflicts

<esc> is mapped to buffer switching and therefore has been conflicting
with this mapping. Since clearing search highlighting is a seldom-used
function, requiring this new key combination.
Add shortcut `_debug` function to bash-template
Update dots submodule
Add git-mkrepo
Add `tiga` alias for `tig --all`
Add reference to .htoprc in profile.d/htop