Update README.md
ability to color differently the home directly, inspired by powerline
make other themes behave properly after the special coloring for the home dir feature
Merge pull request #89 from emmanueltouzery/master

cwd: ability to color the home directory differently
    Added ReadOnly segment

    + The segment displays a padlock (in patched mode), or 'RO'
      (in compatibility mode).

    ! Added a condition for showing / if that is the only path.
      The CWD segment earlier showed nothing, which I think is not
      very consistent.
Added error redirection to avoid stack traces.
Merge pull request #93 from SaswatPadhi/RO_Dirs

    Added ReadOnly segment
Merge pull request #94 from SaswatPadhi/CTRL-C

Added error redirection to avoid stack traces.
Themes fall back to default.py for missing segment
Merge pull request #98 from SaswatPadhi/default_colors

Themes fall back to default.py for missing segment
Fixed jobs count for current shell
  We generate the entire prompt by evaluating the python script
  in a $() which creates a separate subprocess which is the parent of
  the Python process. The original shell is the parent of the $()
  subprocess. So, we need to get the grand parent id.
Merge pull request #99 from SaswatPadhi/jobs_fix

Fixed jobs count for current shell
Do not display hostname if not on SSH.
Changed separator characters in "patched" mode.
Added my config/theme files.