With Go 1.14 (https://tip.golang.org/doc/go1.14#go-command),
it now automatically checks for the existence of a vendor directory.
So there is no need to explicitly set the `-mod=vendor` flag.
* Consistent license message for all the go files
* Fixing the last set of unconsistencies with the license headers
* Addressing PR review comments
* Fixing busy.go and busy_test.go license header
* create/update config.json using go generate
* added default config generator
added config-reset to Jenkins and make package, updated defaults to consider 'isNew' flag
* corrections after code review
* fixed Config.isValid to handle empty encryption keys
* fixed Config.isValid to handle empty encryption keys
* fixed Config.isValid to handle empty encryption keys
* isUpdate now only checks for nil
* Addressed review comments, added unit testing for default config generator
* err shadowing
* license
* provide output file for config generator via ENV variable, since go generate doesn't support arguments and we need two output paths (config-reset and package)
* cleanup
* proper defaults for PushNotificationServer and SendPushNotifications
* corrected generating defaults for TrustedProxyIPHeader to be consistent with default.json in master
* Check for empty SiteURL as well as nil
* corrected SiteURL settings and checking
* crazy typos fixed
* corrected tests to newly expected values
* relaxed the checks
* fixed formatting
