Unit tests and update to quickstart guide (#354)

* Added a test for GetLoggingLevel

* Added up to 96% coverage for checkpoint.go

* Improved coverage of checkpoint.go to 96.4%

* Improved coverage of checkpoint.go to 96.4%

* Adding changes so i will have them saved for my remote fork thingy

* Fixed unit tests in checkpoint_test.go and conf_test.go

* Removed unnecessary comments

* improved conf code coverage by an amount that is greater than 0!

* improved coverage, but line 144 of conf.go needs a look

* Added unit tests to multus and types, also fixed a bug in conf.go

* added label to import types/020 in types.go

* hopefully resolved merge conflicts

* increased code coverage in multus.go and conf.go, also added bug fixes and formatting

* addressed all comments in review

* Updated testing.go with better comments

* changed 'thejohn' to '_not_type' for readability

* added additional unit tests

* added tests to kubeletclient.go

* added more unit tests to k8sclient.go and kubeletclient.go

* Added network status annotations section to quickstart and added more unit tests

* made changes to tests based on code review

logging/logging_test.go

@@ -45,6 +45,12 @@ var _ = Describe("logging operations", func() {
 		// check file existance
 	})
 
+	It("Check file setter with bad filepath", func() {
+		SetLogFile("/invalid/filepath")
+		Expect(loggingFp).NotTo(Equal(nil))
+		// check file existance
+	})
+
 	It("Check loglevel setter", func() {
 		SetLogLevel("debug")
 		Expect(loggingLevel).To(Equal(DebugLevel))