fix imports in ui_lib and flags cos of defaultAssetPath move; fix logLevel type for gui

ethereal/flags.go

 package main
 
 import (
+	"fmt"
+	"os"
+  "os/user"
+  "path"
+  "github.com/ethereum/eth-go/ethlog"
 	"flag"
+	"bitbucket.org/kardianos/osext"
+	"path/filepath"
+	"runtime"
 )
 
 var Identifier string
@@ -59,6 +67,11 @@ func defaultDataDir() string {
 var defaultConfigFile = path.Join(defaultDataDir(), "conf.ini")
 
 func Init() {
+	flag.Usage = func() {
+		fmt.Fprintf(os.Stderr, "%s [options] [filename]:\noptions precedence: default < config file < environment variables < command line", os.Args[0])
+		flag.PrintDefaults()
+	}
+
 	flag.StringVar(&Identifier, "id", "", "Custom client identifier")
 	flag.StringVar(&OutboundPort, "port", "30303", "listening port")
 	flag.BoolVar(&UseUPnP, "upnp", false, "enable UPnP support")
@@ -75,7 +88,7 @@ func Init() {
 	flag.StringVar(&ConfigFile, "conf", defaultConfigFile, "config file")
 	flag.StringVar(&DebugFile, "debug", "", "debug file (no debugging if not set)")
 	flag.IntVar(&LogLevel, "loglevel", int(ethlog.InfoLevel), "loglevel: 0-4: silent,error,warn,info,debug)")
-	flag.StringVar(&AssetPath, "asset_path", defaultAssetPath, "absolute path to GUI assets directory")
+	flag.StringVar(&AssetPath, "asset_path", defaultAssetPath(), "absolute path to GUI assets directory")
 
 	flag.Parse()
 }

ethereal/main.go

 package main
 
 import (
-	"fmt"
 	"github.com/ethereum/go-ethereum/ethereal/ui"
 	"github.com/ethereum/go-ethereum/utils"
 	"github.com/go-qml/qml"
 	"runtime"
 )
 
-const Debug = true
-
 func main() {
 	qml.Init(nil)
 
@@ -38,6 +35,6 @@ func main() {
 
 	utils.StartEthereum(ethereum, UseSeed)
 
-	gui := ethui.New(ethereum, logLevel)
+	gui := ethui.New(ethereum, LogLevel)
 	gui.Start(AssetPath)
 }

ethereal/ui/gui.go

@@ -40,7 +40,7 @@ type Gui struct {
 }
 
 // Create GUI, but doesn't start it
-func New(ethereum *eth.Ethereum, logLevel ethlog.LogLevel) *Gui {
+func New(ethereum *eth.Ethereum, logLevel int) *Gui {
 	lib := &EthLib{stateManager: ethereum.StateManager(), blockChain: ethereum.BlockChain(), txPool: ethereum.TxPool()}
 	db, err := ethdb.NewLDBDatabase("tx_database")
 	if err != nil {
@@ -56,7 +56,7 @@ func New(ethereum *eth.Ethereum, logLevel ethlog.LogLevel) *Gui {
 
 	pub := ethpub.NewPEthereum(ethereum)
 
-	return &Gui{eth: ethereum, lib: lib, txDb: db, addr: addr, pub: pub, logLevel: logLevel}
+	return &Gui{eth: ethereum, lib: lib, txDb: db, addr: addr, pub: pub, logLevel: ethlog.LogLevel(logLevel)}
 }
 
 func (gui *Gui) Start(assetPath string) {

ethereal/ui/ui_lib.go

 package ethui
 
 import (
-	"bitbucket.org/kardianos/osext"
 	"github.com/ethereum/eth-go"
 	"github.com/ethereum/eth-go/ethutil"
 	"github.com/go-qml/qml"
-	"os"
 	"path"
-	"path/filepath"
-	"runtime"
 )
 
 type memAddr struct {