* Fix FIAM test flakes and resulting library bugs
* style
* Fix naming of initWithExpireAdfterInSeconds:withTimeFetcher:withCacheFile. Move mock setup of mockTimeFetcher prior to initializing FIRIAMClearcutLogStorage
* FIRIAMClearcutUploader: Only schedule next log send on init if there are logs that haven't been sent at that time. Early return from scheduling if there's already a pending send
* Fix whitespace
* Make cachePath in `initWithExpireAfterInSeconds:withTimeFetcher:cachePath:` nullable
Paul Beusterien