Make the update script more resiliant to errors.

Signed-off-by: Tyler O'Meara <Tyler@TylerOMeara.com>
Limit key removal to HTTPErrors only.

Signed-off-by: Tyler O'Meara <Tyler@TylerOMeara.com>
simplify key update error reporting a bit
Merge pull request #378 from jboning/feature/UpdateKeys

Feature/update keys