Implement Logger (#228)

* Added new base logger

* updated example and test configs

* updated exchange helpers restful router & server

* logPath is now passed to the logger to remove dependency on common package

* updated everything besides exchanges to use new logger

* alphapoint to bitmex done

* updated bitmex bitstamp bittrex btcc and also performance changes to logger

* btcmarkets coinbase coinut exmo gateio wrappers updated

* gateio and gemini logger updated

* hitbtc huobi itbit & kraken updated

* All exchanges updatd

* return correct error for disabled websocket

* don't disconnect client on invalid json

* updated router internal logging

* log.Fatal to t.Error for tests

* Changed from fatal to error failure to set maxprocs

* output ANSI codes for everything but windows for now due to lack of windows support

* added error handling to logger and unit tests

* clear wording on print -> log.print

* added benchmark test

* cleaned up import sections

* Updated logger based on PR requests (added default config options on failure/setting errors)

* ah this should fix travici enc config issue

* Load entire config and clear out logging to hopefully fix travisci issue

* wording & test error handling

* fixed formatting issues based on feedback

* fixed formatting issues based on feedback

* changed CheckDir to use mkdirall instead of mkdir and other changes based on feedback

portfolio/portfolio.go

@@ -3,10 +3,10 @@ package portfolio
 import (
 	"errors"
 	"fmt"
-	"log"
 	"time"
 
 	"github.com/thrasher-/gocryptotrader/common"
+	log "github.com/thrasher-/gocryptotrader/logger"
 )
 
 const (
@@ -390,7 +390,7 @@ func (p *Base) SeedPortfolio(port Base) {
 // StartPortfolioWatcher observes the portfolio object
 func StartPortfolioWatcher() {
 	addrCount := len(Portfolio.Addresses)
-	log.Printf(
+	log.Debugf(
 		"PortfolioWatcher started: Have %d entries in portfolio.\n", addrCount,
 	)
 	for {
@@ -398,7 +398,7 @@ func StartPortfolioWatcher() {
 		for key, value := range data {
 			success := Portfolio.UpdatePortfolio(value, key)
 			if success {
-				log.Printf(
+				log.Debugf(
 					"PortfolioWatcher: Successfully updated address balance for %s address(es) %s\n",
 					key, value,
 				)