* Add option for a custom ca-bundle file.
* Renamed option cacert to ca-bundle.
* Save CA_BUNDLE path in configuration file.
* Store absolule path to ca-bundle file
There was a missing escape of a { character in one of the regular
expressions passed to grep. This adds that.
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>