fixes #135 - highlight in red errors in summary email

fixes #130 - divide by zero in dasbboard

fixes #80, fixes #106 and fixes #128

fixes #71 - send out daily email summary of puppet changes

switches global setting var to be a constant var - refs #100

fixes #106 - redid the status calcuation, this fixes #80 but not in an optimal way - db migration would be required for that.

fixes #117 - Add SSL redirection

fixes #129 - Link from hostname on the hosts page is absolute instead of relative (breaking https)

fixed formatting

fixes #127 - query interface ignores invalid facts