make more things configurable
rename file according to most current sentry docs
configure email too
actually add the venv method
split out config into manifests/config.pp
rename method to install_method
adapt to style guide
further cleanups

remove sentry_ prefix from some variables now that they are arguements
expose path globally
expose more config
fix settings file location
document
add a service manifest; implement a method using supervisor
reformat and fix text.