Feature: Faster start & stop times (#648)

* Updates starting and stopping routines to be a bit more parallel with less waiting required

* Removes stop, removes debugging output

* linting and test fixes

* Add extra kill switch for exiting on exchange loading delay

* Fixes fun math

* breaks loop instead of switch. Moves param warns higher

* Removes unceccary gos. passes in cfg to remove data race

* Removes os signal processing. Fixes bad master merge

config/config.go

@@ -1636,7 +1636,10 @@ func (c *Config) SaveConfigToFile(configPath string) error {
 	}
 	defer func() {
 		if writer != nil {
-			writer.Close()
+			err = writer.Close()
+			if err != nil {
+				log.Error(log.Global, err)
+			}
 		}
 	}()
 	return c.Save(provider, func() ([]byte, error) { return PromptForConfigKey(true) })