now missing dep gives nicer error and docs disambiguate as several libs
out there have same name.
Signed-off-by: Brian Coca <briancoca+dev@gmail.com>
Merge pull request #3867 from bcoca/pingdom_nicer_import_error

now missing dep gives nicer error and docs disambiguate lib
Removing synchronize momentarily as it looks like this won't make 1.3 dates
Update changelog