santa-driver: add back the root and non-root caches (google#302)

* santa-driver: add back the root and non-root caches

* cachehistogram: clarify buckets and entries

* review changes

fix cache invalidation on macOS Mojave (google#298)

MOLCertificate --> 1.9 (google#290)

santad: Wait for driver appearance using IOKit notifications. (google…

…#278)

Continue loading without driver, report status in santactl.

log deny because of dirty vnode (google#267)

* log dirty vnode blocks

* review update

santad / santactl: validate all architectures within universal binari…

…es (google#249)

santactl: Update to MOLFCMClient v1.7 (google#245)

codesign check: verify all architectures (google#239)

* fileinfo rule: don't use certs that have codesigning errors

* pods: MOLCodesignChecker --> 1.8

 config: use KVO (google#234)

* config: atomically update config

* config: add an explanation for sleep usage

* config: use mobileconfig in the getters

* config: cleanup file watcher

* config: spell

* config: clear or reload sync state on sync base url change

* config: Use KVO and Dependent Keys

* config: remove debug log

* config: review updates

* config: update rule sync getter and setter names

* config: get logical

santa-driver: Deny execs with names over MAXPATHLEN with appropriate …

…errno (google#231)