.bash_prompt: Add back escape sequences

Fixes #403.
.bash_prompt: Interpret escape sequences correctly in all cases

Closes #407.
Merge branch 'master' of https://github.com/mathiasbynens/dotfiles

* 'master' of https://github.com/mathiasbynens/dotfiles:
  .bash_prompt: Interpret escape sequences correctly in all cases
  .bash_prompt: Add back escape sequences
Merge branch 'master' of github.com:choffmann/dotfiles

* 'master' of github.com:choffmann/dotfiles:
  added path to common scripts
alias: added cloc (count line of codes)